Diego Costa is fuming. Victor Moses' pass from the right finds the striker, who takes a tumble following what he believes is a little pull from his marker. The ref didn't want to know. But that is not stopping Costa trying to tell him.

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Andy Townsend
Ex-Republic of Ireland international on BBC Radio 5 live

Wow. What a chance.

Saville hits it ever-so well and it slams off the post, much to Begovic's relief.

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Huge chance for Wolves goes begging! A cross from the right falls to George Saville in acres of space in the box and with just Begovic to beat. He lashes his shot but straight against the post.

He is a former Chelsea youngster as well. No wonder he's screaming obscenities at himself for missing that. 

Andy Townsend
Ex-Republic of Ireland international on BBC Radio 5 live

Today we are looking at Willian, Fabregas and Terry playing and they are players you'd class as not in Chelsea's best 11.

That shows the talent Antonio Conte has at his disposal but also shows the respect to the competition and the opposition.

Diego Costa is given an early taste of the medicine Wolves would like to dish out to him this evening. He has barely got the ball into his feet before a snapping tackle comes in from Kortney Hause. 

Andy Townsend
Ex-Republic of Ireland international on BBC Radio 5 live

This is the perfect start for Wolves. The perfect attitude on the front foot asking questions and applying pressure.

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An early error from Kurt Zouma almost gets Chelsea into trouble near the edge of their own box but the big centre-back is able to recover and clear.

Soon after, a floated cross from Conor Coady forces Asmir Begovic to tip the ball over his own bar. They are unable to do anything with the corner but it is a positive start from the home side.

One more FA Cup game remaining today. And it is now under way.

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Huddersfield manager David Wagner: "We are still in the competition which is great! Another match in this busy footballing period but that is not a problem for us. For sure we are one of the fittest teams in the division.

"We were able to make them uncomfortable, they were the better team with chances which is no surprise to anybody but we showed great attitude and passion.

"We are very happy to have another match against a very good team, to test us again. We learn from every game, I love to see my players on the pitch playing football matches.

"We don't have the biggest budget or squad so we needed to rotate since the beginning of December. The players are used to it and they always deliver.

"A clean sheet against Manchester City makes our chest bigger."

Here come the teams at Molineux. There's not an empty seat in the house. Who says nobody cares about the FA Cup anymore?

Leicester City

Leicester manager Claudio Ranieri: "I am very disappointed. We played well in the first half, so-so at the beginning of the second until it went to 10 v 11. After then, they played better than us, with more desire and heart and deserved to win.

"When we have the opportunity to go to the next round, we have to win. We have to show desire. I gave a great opportunity to my players. 

"In the first half, I watched good football. We were very prepared. I was happy at the end of the first half. I said 'keep going, try to score but keep a clean sheet' because in the second leg the pitch might be better at home and we can play our football but we lost at the last minute.

"We can learn. When a team from League One beat the champions we say 'why?' and have to react as soon as possible. We are better than Millwall but Millwall deserved to win."

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Middlesbrough

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Middlesbrough manager Aitor Karanka: “It was a typical FA Cup game, so when you think everything is under control you concede two goals in one minute.

“Now it is nice because we won the game, but at the time the other manager would have been really pleased.

“If you lose your attention, even against a League One team, it is the biggest mistake. 

"To compete in this country you always have to play 150%, even teams two divisions lower can create you problems.

“Three years ago I don’t think anyone would believe we would be in the Premier League and quarter-finals of the FA Cup.”

We've had some drama today. And there is still potentially more to come. The flags are waving at Molineux, where Championship side Wolves are hosting Premier League leaders Chelsea. Kick-off is about 10 minutes away.

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Millwall manager Neil Harris: "This sums up the FA Cup as a whole. It doesn't happen by chance. We are on a great run and have great spirit.

"When we went to 10 men it galvanised us. There was more pressure on Leicester. I made attacking changes to win the game because neither of us wanted a replay. When we needed that bit of quality Shaun Cummings provided it.

"I thought the atmosphere was electric. The noise was phenomenal. These are special days for us. The fans feed off the players and players off the fans. 

"When you get to the quarter-finals you start to think 'who knows? If we can get a kind draw at home again'.

"We took inspiration from what Lincoln have done.  

"What they achieved today outshines us. Well done to Danny Cowley. Tuesday is so important for us in the league. We need to win our league games. This is a welcome distraction and builds momentum for us."

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What a moment. The goal that took Millwall into the quarter-finals...

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Oxford United boss Michael Appleton: “In the first half a couple of players struggled with the occasion a bit, they were a bit star struck.

"We told them to trust the information they got. In the second half we got back to plan and played in their half of the field.

"To get hit with a sucker punch like that is hard to take.

"We conceded three League One goals. We are normally very hard and difficult to score against.

"I’m delighted the way they brought themselves back into the game, it’s been a good game but I’m disappointed it’s over as we wanted to win the game and we had them on the ropes at 2-2."

Vincent Kompany has played for 127 minutes since October. All against Crystal Palace at Selhurst Park. 

Standing room only in the news conference...

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It’s not too late to enter this year’s FA People’s Cup - as long as you do it by the deadline anyway - and that is at midnight on Sunday. 

Entry is completely FREE, there are categories for everyone AND you can enter either as a team or an individual player. 

Find out all the details then sign up here., external

Manchester City

Manchester City manager Pep Guardiola: "No. It is not frustrating, it was a tough game against one of the best teams in the Championship.

"Two days ago there was a rugby game on the pitch which made it slow but we made a good performance. They are a really good team, congratulations to Huddersfield.

"When you play against teams at the top of the Championship, it is obviously difficult. There were no complaints, my team did what I asked them to do.

"I love my job. We have to play a replay, that is the rules. We will come back from Abu Dhabi and play.

"Vincent Kompany was not able to play today but it is not a big issue."

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Millwall goalscorer Shaun Cummings, speaking to BBC Sport: "It was a very good team effort, especially since we were down to 10 men. It is another clean sheet and a goal to get into the next round.

"I saw an opportunity to run forward and get in the box and it just opened up for me.

"This is our home ground and you can see the atmosphere. Any team we get at home, we can do a number on them. 

"This win adds confidence to the team. It is another clean sheet. We have to keep moving forward. The league is the priority but the FA Cup also is now.

"We are in the competition to win it. It is nice we have got this far. We have to keep moving forward. Hopefully we will get another home draw and we move on from there."

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