That's all for this live text on a great day for Middlesbrough.
It is the first leg of the second semi-final tomorrow as Liverpool entertain Fulham at Anfield so join us for that one.
Thanks for being with us tonight and see you on Wednesday.
Middlesbrough earn slender EFL Cup lead over Chelsea - read the report
FT: Middlesbrough 1-0 Chelsea
Callum Matthews
BBC Sport
ReutersCopyright: Reuters
Chelsea missed a host of chances as Championship side Middlesbrough earned a slender advantage in the first leg of their Carabao Cup semi-final at a boisterous Riverside Stadium.
Hayden Hackney scored the only goal, opening up his body to slide home an Isaiah Jones cross in the first half.
Cole Palmer missed three presentable opportunities as Chelsea failed to score for the sixth time this season.
The second leg takes place on Tuesday, 23 January at 19:45 GMT.
Liverpool face Fulham in the other semi-final, with the final taking place at Wembley on Sunday, 25 February.
'Bodies were everywhere at the end'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
More from Middlesbrough boss Michael Carrick, speaking to Sky Sports after the game. On injuries: "It is not ideal and you cannot plan for that.
"Emmanuel Latte Lath had a decent chance as he got injured and it is one of those.
"It was like for like substitutions in many ways, Josh Coburn and Matt Clarke settled into the game.
"They did not lose rhythm and the way they [players] stuck together as a squad was special and made me so proud to see them scrambling. Bodies were everywhere at the end - it was a great feeling and I am really proud."
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SMS Message: Poch is a massively over-rated manager. Yes he has inherited a mess at Chelsea. Tonight showcased him and his poor judgement. Poor team selection, poor substitutions and no ability or willingness to change the tactics or system to break down the opposition. It has been the case all season. Players need to take some responsibility but so does he and his poor decision making. from Anon
Poch is a massively over-rated manager. Yes he has inherited a mess at Chelsea. Tonight showcased him and his poor judgement. Poor team selection, poor substitutions and no ability or willingness to change the tactics or system to break down the opposition. It has been the case all season. Players need to take some responsibility but so does he and his poor decision making.
Getty ImagesCopyright: Getty Images
'Football is about dreaming'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
Middlesbrough manager Michael Carrick, speaking to Sky Sports, said: "The way they stuck together was very special and makes me proud to see that. It was great to see and a great feeling.
"I thought we managed the spaces well, they had some opportunities and we had to ride our luck a bit at times. We had to show a bit of everything and I'm buzzing.
"I know what it means to everyone, it was fantastic for me to see so many people so happy and it's pretty special. We know the task ahead of us. We will enjoy tonight and we have another massive game on Saturday.
"We will be ready for the next game [the second leg] and attack the game and see what happens. Football is about dreaming and things happen like tonight which probably shouldn't happen. We go there with our eyes wide open and know what to expect, but it won't stop us trying."
'We need to be positive'
FT: Middlesbrough 1-0 Chelsea
Chelsea
Chelsea manager Mauricio Pochettino, speaking to Sky Sports, said: "Today the pressure was good and intensity, we cannot say anything. We made some mistakes in the first half, we gave them chances to scores and then they were so aggressive and tough. They play in the transition with the counter-attack and in a block really deep and it was difficult for us to break down. We had too many chances to score when we didn't score, that is football. We are disappointed but it is the first half of the tie. We need to be positive."
On whether his players lack self belief: "It is how we compete. We made some mistakes and we were punished for that, in football that happens. We have to be pushing. If you assess the performance, then overall we were the better side, we created more chances and had the clear chances. But, we didn't score. That has happened this season and there has been a lot of games we have not won because we were not clinical enough. We have a lack of goals, but not creating chances. We are creating many chances but not scoring them and if you don't score then it is difficult to win."
On whether we'll have players back from injury for the second leg: "We've got 14 days and we can recover some players. In the end, some players can help but we've got another game now and we need to recover. We are thinking Fulham and we'll move on."
On what he expects in the second leg: "We are going to expect a similar game to today. We've got 90 minutes to play and we'll try and score goals and win the games. And if not, it'll be our mistake."
On the fans at full-time and Thiago Silva going over: "I didn't see what happened. I cannot say nothing about that. We can understand that our fans will be disappointed but there are still 90 minutes to play."
'Chelsea are still favourites'
FT: Middlesbrough 1-0 Chelsea
Pat Nevin
Former Chelsea and Scotland winger on BBC Radio 5 Live
Yes Chelsea are still favourites.
That was the best team Chelsea put out tonight, but it was not good enough.
At Stamford Bridge they have 90 minutes to get a goal, they have to be favourites but it does not mean they are going to win it.
The semi-final is the worse game to lose as nobody remembers you and you don't get to Wembley after working so hard.
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SMS Message: Fly Me to the Moon with Josh Coburn - he has worked his socks off tonight! An old-fashioned centre forward performance! from Joe
Fly Me to the Moon with Josh Coburn - he has worked his socks off tonight! An old-fashioned centre forward performance!
Getty ImagesCopyright: Getty Images
'We were not clinical'
FT: Middlesbrough 1-0 Chelsea
Chelsea
Chelsea manager Mauricio Pochettino, speaking to BBC Radio 5 Live: "It is difficult to talk about our performance. We made some mistakes where we was punished and they scored.
"It was difficult to breakdown and we created some chances, but we were not clinical enough.
"Now we need to think for Fulham [on Saturday] and then prepare for the second leg."
On Cole Palmer: "Good chances to score, but it can happen - we were not clinical enough.
"This first half of the season we have created some chances, but we have not won because we were not clinical enough - we must keep pushing."
On the second leg: "The frustration is we are disappointed. We have 90 minutes at Stamford Bridge and we will be positive in two weeks' time where we can change the reality."
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SMS Message: The game tonight sums up Chelsea these past couple of seasons to a tee. Dominate a game, but absolutely toothless. The lack of quality players on scarily long contracts must be slightly worrying for Chelsea fans regarding incomings which could actually improve the squad. Poch has to be scratching his head in what to do to find some consistency. Chelsea will progress to the final, but they should be making an easier time of it. from Paul
The game tonight sums up Chelsea these past couple of seasons to a tee. Dominate a game, but absolutely toothless. The lack of quality players on scarily long contracts must be slightly worrying for Chelsea fans regarding incomings which could actually improve the squad. Poch has to be scratching his head in what to do to find some consistency. Chelsea will progress to the final, but they should be making an easier time of it.
'We still have to go to their place and get the job done'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
Middlesbrough's Isaiah Jones, named player of the match, speaking to Sky Sports, said: "Very special. A good performance from the team and solid defensively. We scored a goal but it's only half-time and we still have to go to their place and get the job done.
"The crowd were our 12th man. We have a lot of belief and we go with a 1-0 lead. We played Aston Villa and only lost in the last five minutes so we have lost to a Premier League team and beaten a Premier League team. Hopefully we can go there and get to Wembley.
"I enjoyed it. I love to test myself, it was a good challenge and I rose to the occasion."
Getty ImagesCopyright: Getty Images
'Boro will have to ride their luck again'
FT: Middlesbrough 1-0 Chelsea
Stewart Downing
Former Middlesbrough and England midfielder on BBC Radio 5 Live
First and foremost Cole Palmer is a brilliant player. But he has missed two glorious chances - Boro will have to ride their luck again in the second leg.
Two of the big chances came from Boro's mistakes, so there is the downfall for them.
It will be a big second leg, but I reckon Boro are confident going into the game.
'Carrick must be proud'
FT: Middlesbrough 1-0 Chelsea
Pat Nevin
Former Chelsea and Scotland winger on BBC Radio 5 Live
The crowd got behind the team this evening. Michael Carrick must be proud of his team and there was not one player in that Boro team who did not give their all.
Carrick won't say it himself, but he should also be proud of himself. He has a lot of players missing and then his game-plan changed after five minutes.
He had to change from a five at the back to a four at the back, he kept on getting asked questions and he kept answering them.
Getty ImagesCopyright: Getty Images
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SMS Message: You can’t go to a Championship club and not play a striker. Completely handcuffed our best player this season (Cole Palmer) and then took off our most creative players (Enzo Fernandes and Noni Madueke) when we needed them to break down a deep lying defence. He’s a good manager, but Poch has had a stinker tonight. from Ali
You can’t go to a Championship club and not play a striker. Completely handcuffed our best player this season (Cole Palmer) and then took off our most creative players (Enzo Fernandes and Noni Madueke) when we needed them to break down a deep lying defence. He’s a good manager, but Poch has had a stinker tonight.
'Still a long way to go'
FT: Middlesbrough 1-0 Chelsea
Stewart Downing
Former Middlesbrough and England midfielder on BBC Radio 5 Live
It was a great team effort.
A couple of tackles went in and the roars from the crowd went up. As a player the roars let you go again.
It is a great result for Boro and they will try to do that again in the second leg - still a long way to go.
Getty ImagesCopyright: Getty Images
Yet another loss for big-spending Chelsea
FT: Middlesbrough 1-0 Chelsea
Among Premier League sides, only Bournemouth and Nottingham Forest (32 each) have lost more games than Chelsea (31) in all competitions since the start of last season, while no side has lost more away from home than the Blues (21).
'Questions for Chelsea'
FT: Middlesbrough 1-0 Chelsea
Pat Nevin
Former Chelsea and Scotland winger on BBC Radio 5 Live
It did not have to be anything complicated.
Get it over the top of the Chelsea defenders and Isaiah Jones will run on to it. When he got to the byline he did not panic and that was the difference between him and the Chelsea players.
Jones was doing it time and time again, he was a consistent danger.
Do Chelsea play Levi Colwill at left-back again? There are a few questions for Chelsea.
Getty ImagesCopyright: Getty Images
'We did really well tonight'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
Middlesbrough captain Jonny Howson, speaking to Sky Sports, said: "These opportunities don't come around too often, it's the first time in my career. You have to make the most of it, give it your all, your best shot and see what happens."
Goalscorer Hayden Hackney said: "We stuck to the plan and tried to keep it tight and catch them on the counter. It was a great ball, I just got on the end of it.
"I think we did really well tonight, but it's a completely different game away from home. We will give it our best shot."
'Great atmosphere'
FT: Middlesbrough 1-0 Chelsea
Stewart Downing
Former Middlesbrough and England midfielder on BBC Radio 5 Live
Unbelievable - it is great to be here, a great atmosphere.
The fans have played a big part tonight, the team was tiring and getting deeper.
The fans have played a big part and they have given the players energy.
Getty ImagesCopyright: Getty Images
FULL-TIME
Middlesbrough 1-0 Chelsea
Middlesbrough get the win and go to the second leg at Stamford Bridge in a fortnight's time with something to hold on to.
Hayden Hackney scored after 37 minutes, followed by a superb team defensive display to hold Chelsea off.
Mauricio Pochettino's side are still well in the tie, but they must win in London in the second leg or Middlesbrough will be in the final of the Carabao Cup.
Live Reporting
Michael Emons
All times stated are UK
ReutersCopyright: Reuters 
Getty ImagesCopyright: Getty Images 
Getty ImagesCopyright: Getty Images 
Getty ImagesCopyright: Getty Images 
Getty ImagesCopyright: Getty Images 
Getty ImagesCopyright: Getty Images 
Getty ImagesCopyright: Getty Images 
Getty ImagesCopyright: Getty Images
Latest PostThanks and goodbye
FT: Middlesbrough 1-0 Chelsea
That's all for this live text on a great day for Middlesbrough.
It is the first leg of the second semi-final tomorrow as Liverpool entertain Fulham at Anfield so join us for that one.
Thanks for being with us tonight and see you on Wednesday.
Middlesbrough earn slender EFL Cup lead over Chelsea - read the report
FT: Middlesbrough 1-0 Chelsea
Callum Matthews
BBC Sport
Chelsea missed a host of chances as Championship side Middlesbrough earned a slender advantage in the first leg of their Carabao Cup semi-final at a boisterous Riverside Stadium.
Hayden Hackney scored the only goal, opening up his body to slide home an Isaiah Jones cross in the first half.
Cole Palmer missed three presentable opportunities as Chelsea failed to score for the sixth time this season.
The second leg takes place on Tuesday, 23 January at 19:45 GMT.
Liverpool face Fulham in the other semi-final, with the final taking place at Wembley on Sunday, 25 February.
'Bodies were everywhere at the end'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
More from Middlesbrough boss Michael Carrick, speaking to Sky Sports after the game. On injuries: "It is not ideal and you cannot plan for that.
"Emmanuel Latte Lath had a decent chance as he got injured and it is one of those.
"It was like for like substitutions in many ways, Josh Coburn and Matt Clarke settled into the game.
"They did not lose rhythm and the way they [players] stuck together as a squad was special and made me so proud to see them scrambling. Bodies were everywhere at the end - it was a great feeling and I am really proud."
Get Involved
#bbcfootball, via WhatsApp on 03301 231826 or text 81111 (UK only, standard message rates apply)
'Football is about dreaming'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
Middlesbrough manager Michael Carrick, speaking to Sky Sports, said: "The way they stuck together was very special and makes me proud to see that. It was great to see and a great feeling.
"I thought we managed the spaces well, they had some opportunities and we had to ride our luck a bit at times. We had to show a bit of everything and I'm buzzing.
"I know what it means to everyone, it was fantastic for me to see so many people so happy and it's pretty special. We know the task ahead of us. We will enjoy tonight and we have another massive game on Saturday.
"We will be ready for the next game [the second leg] and attack the game and see what happens. Football is about dreaming and things happen like tonight which probably shouldn't happen. We go there with our eyes wide open and know what to expect, but it won't stop us trying."
'We need to be positive'
FT: Middlesbrough 1-0 Chelsea
Chelsea
Chelsea manager Mauricio Pochettino, speaking to Sky Sports, said: "Today the pressure was good and intensity, we cannot say anything. We made some mistakes in the first half, we gave them chances to scores and then they were so aggressive and tough. They play in the transition with the counter-attack and in a block really deep and it was difficult for us to break down. We had too many chances to score when we didn't score, that is football. We are disappointed but it is the first half of the tie. We need to be positive."
On whether his players lack self belief: "It is how we compete. We made some mistakes and we were punished for that, in football that happens. We have to be pushing. If you assess the performance, then overall we were the better side, we created more chances and had the clear chances. But, we didn't score. That has happened this season and there has been a lot of games we have not won because we were not clinical enough. We have a lack of goals, but not creating chances. We are creating many chances but not scoring them and if you don't score then it is difficult to win."
On whether we'll have players back from injury for the second leg: "We've got 14 days and we can recover some players. In the end, some players can help but we've got another game now and we need to recover. We are thinking Fulham and we'll move on."
On what he expects in the second leg: "We are going to expect a similar game to today. We've got 90 minutes to play and we'll try and score goals and win the games. And if not, it'll be our mistake."
On the fans at full-time and Thiago Silva going over: "I didn't see what happened. I cannot say nothing about that. We can understand that our fans will be disappointed but there are still 90 minutes to play."
'Chelsea are still favourites'
FT: Middlesbrough 1-0 Chelsea
Pat Nevin
Former Chelsea and Scotland winger on BBC Radio 5 Live
Yes Chelsea are still favourites.
That was the best team Chelsea put out tonight, but it was not good enough.
At Stamford Bridge they have 90 minutes to get a goal, they have to be favourites but it does not mean they are going to win it.
The semi-final is the worse game to lose as nobody remembers you and you don't get to Wembley after working so hard.
Get Involved
#bbcfootball, via WhatsApp on 03301 231826 or text 81111 (UK only, standard message rates apply)
'We were not clinical'
FT: Middlesbrough 1-0 Chelsea
Chelsea
Chelsea manager Mauricio Pochettino, speaking to BBC Radio 5 Live: "It is difficult to talk about our performance. We made some mistakes where we was punished and they scored.
"It was difficult to breakdown and we created some chances, but we were not clinical enough.
"Now we need to think for Fulham [on Saturday] and then prepare for the second leg."
On Cole Palmer: "Good chances to score, but it can happen - we were not clinical enough.
"This first half of the season we have created some chances, but we have not won because we were not clinical enough - we must keep pushing."
On the second leg: "The frustration is we are disappointed. We have 90 minutes at Stamford Bridge and we will be positive in two weeks' time where we can change the reality."
Get Involved
#bbcfootball, via WhatsApp on 03301 231826 or text 81111 (UK only, standard message rates apply)
'We still have to go to their place and get the job done'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
Middlesbrough's Isaiah Jones, named player of the match, speaking to Sky Sports, said: "Very special. A good performance from the team and solid defensively. We scored a goal but it's only half-time and we still have to go to their place and get the job done.
"The crowd were our 12th man. We have a lot of belief and we go with a 1-0 lead. We played Aston Villa and only lost in the last five minutes so we have lost to a Premier League team and beaten a Premier League team. Hopefully we can go there and get to Wembley.
"I enjoyed it. I love to test myself, it was a good challenge and I rose to the occasion."
'Boro will have to ride their luck again'
FT: Middlesbrough 1-0 Chelsea
Stewart Downing
Former Middlesbrough and England midfielder on BBC Radio 5 Live
First and foremost Cole Palmer is a brilliant player. But he has missed two glorious chances - Boro will have to ride their luck again in the second leg.
Two of the big chances came from Boro's mistakes, so there is the downfall for them.
It will be a big second leg, but I reckon Boro are confident going into the game.
'Carrick must be proud'
FT: Middlesbrough 1-0 Chelsea
Pat Nevin
Former Chelsea and Scotland winger on BBC Radio 5 Live
The crowd got behind the team this evening. Michael Carrick must be proud of his team and there was not one player in that Boro team who did not give their all.
Carrick won't say it himself, but he should also be proud of himself. He has a lot of players missing and then his game-plan changed after five minutes.
He had to change from a five at the back to a four at the back, he kept on getting asked questions and he kept answering them.
Get Involved
#bbcfootball, via WhatsApp on 03301 231826 or text 81111 (UK only, standard message rates apply)
'Still a long way to go'
FT: Middlesbrough 1-0 Chelsea
Stewart Downing
Former Middlesbrough and England midfielder on BBC Radio 5 Live
It was a great team effort.
A couple of tackles went in and the roars from the crowd went up. As a player the roars let you go again.
It is a great result for Boro and they will try to do that again in the second leg - still a long way to go.
Yet another loss for big-spending Chelsea
FT: Middlesbrough 1-0 Chelsea
Among Premier League sides, only Bournemouth and Nottingham Forest (32 each) have lost more games than Chelsea (31) in all competitions since the start of last season, while no side has lost more away from home than the Blues (21).
'Questions for Chelsea'
FT: Middlesbrough 1-0 Chelsea
Pat Nevin
Former Chelsea and Scotland winger on BBC Radio 5 Live
It did not have to be anything complicated.
Get it over the top of the Chelsea defenders and Isaiah Jones will run on to it. When he got to the byline he did not panic and that was the difference between him and the Chelsea players.
Jones was doing it time and time again, he was a consistent danger.
Do Chelsea play Levi Colwill at left-back again? There are a few questions for Chelsea.
'We did really well tonight'
FT: Middlesbrough 1-0 Chelsea
Middlesbrough
Middlesbrough captain Jonny Howson, speaking to Sky Sports, said: "These opportunities don't come around too often, it's the first time in my career. You have to make the most of it, give it your all, your best shot and see what happens."
Goalscorer Hayden Hackney said: "We stuck to the plan and tried to keep it tight and catch them on the counter. It was a great ball, I just got on the end of it.
"I think we did really well tonight, but it's a completely different game away from home. We will give it our best shot."
'Great atmosphere'
FT: Middlesbrough 1-0 Chelsea
Stewart Downing
Former Middlesbrough and England midfielder on BBC Radio 5 Live
Unbelievable - it is great to be here, a great atmosphere.
The fans have played a big part tonight, the team was tiring and getting deeper.
The fans have played a big part and they have given the players energy.
FULL-TIME
Middlesbrough 1-0 Chelsea
Middlesbrough get the win and go to the second leg at Stamford Bridge in a fortnight's time with something to hold on to.
Hayden Hackney scored after 37 minutes, followed by a superb team defensive display to hold Chelsea off.
Mauricio Pochettino's side are still well in the tie, but they must win in London in the second leg or Middlesbrough will be in the final of the Carabao Cup.