Ryan Trevitt takes the free kick, but puts it straight into the wall.
Two minutes plus stoppage time to go.
Post update
Mansfield Town 0-1 Port Vale
Port Vale are minutes away from a place in the League Cup quarter-finals with Mansfield's attempt to get back level disrupted by a few free kicks disrupting the game's flow.
Post update
Exeter 2-3 Middlesbrough
Exeter win a free kick 25 yards from goal.
Ryan Trevitt to take this? He's picked the ball up and set it in position....
Post update
Exeter 2-3 Middlesbrough
Brent Pilnick
BBC Sport at St James Park
Poor old Ryan Trevitt. He's scored two wonderful goals tonight, but he will probably remember the evening for that tug on Morgan Rogers that cost the penalty.
But the 20-year-old Brentford loanee seems to have a bright future judging on tonight's performance.
'I feel sick for Exeter'
Exeter 2-3 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
I can't imagine how Exeter boss Gary Caldwell feels right now, I feel sick myself!
A moment of madness, just crazy. Exeter were in no danger. Morgan Rogers wasn't going to have a shot.
GOAL - Exeter 2-3 Middlesbrough
Emmanuel Latte Lath pen (83 mins)
No mistake! Emmanuel Latte Lath strokes it into the bottom corner.
PENALTY TO MIDDLESBROUGH
Exeter 2-2 Middlesbrough
Morgan Rogers has his shirt tugged inside the box by Ryan Trevitt and Middlesbrough have a penalty!
Post update
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
Benches will be key tonight, especially for the final 10 minutes. This will really be a squad game tonight.
Post update
Exeter 2-2 Middlesbrough
Quick counter by Middlesbrough and Emmanuel Latte Lath is into the box but his effort is superbly denied by Viljami Sinisalo.
Post update
Mansfield Town 0-1 Port Vale
Into the final 10 minutes and it is Port Vale looking the most likely to score again as Oliver Arblaster sees an effort blocked.
'Enthralling'
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
This game has flown. You can have some games where you are looking at your watch and wondering when you can shoot off, but this is enthralling.
Post update
Exeter 2-2 Middlesbrough
Oooh not far, not far at all! Hayden Hackney goes for goal from a free kick and it curls just wide.
Great effort.
Post update
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
This is a wonderful cup tie, it really is.
Post update
A reminder there's no extra time in the League Cup, we will go straight to penalties if any tie ends all square.
Post update
Exeter 2-2 Middlesbrough
Here come Middlesbrough again as Emmanuel Latte Lath goes for goal on the edge of the box but Cheick Diabate makes a great block.
Post update
Mansfield Town 0-1 Port Vale
Port Vale win their eighth corner of the game as they continue to search for the second with just over 15 minutes to go. In comes the delivery but a header goes well wide and out for a throw.
GREAT SAVE!
Exeter 2-2 Middlesbrough
Viljami Sinisalo makes a fantastic save to deny Middlesbrough's Sam Silvera before Ryan Trevitt, on a hat-trick, comes forward before a challenge comes in.
We've got a game on here now!
Post update
Exeter 2-2 Middlesbrough
Brent Pilnick
BBC Sport at St James Park
OK, who saw that coming?
It's bouncing in here once again now. Trevitt's shot took a slight deflection on its way though and it's fired up the hosts once again.
I still think Boro will have too much, but we have got a really good cup tie on our hands.
'Game back to life'
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
It was a wonderful goal and what the game needed form a neutral point of view as there was a fear Middlesbrough would run away with it, but this has now kicked it back into life.
GOAL - Exeter 2-2 Middlesbrough
Ryan Trevitt (66 mins)
The 20-year-old does it again!
It is another brilliant strike by Brentford loanee Ryan Trevitt, coming out of nowhere with a thumping effort from outside the box.
Live Reporting
Gary Rose
All times stated are UK
Post update
Exeter 2-3 Middlesbrough
Ryan Trevitt takes the free kick, but puts it straight into the wall.
Two minutes plus stoppage time to go.
Post update
Mansfield Town 0-1 Port Vale
Port Vale are minutes away from a place in the League Cup quarter-finals with Mansfield's attempt to get back level disrupted by a few free kicks disrupting the game's flow.
Post update
Exeter 2-3 Middlesbrough
Exeter win a free kick 25 yards from goal.
Ryan Trevitt to take this? He's picked the ball up and set it in position....
Post update
Exeter 2-3 Middlesbrough
Brent Pilnick
BBC Sport at St James Park
Poor old Ryan Trevitt. He's scored two wonderful goals tonight, but he will probably remember the evening for that tug on Morgan Rogers that cost the penalty.
But the 20-year-old Brentford loanee seems to have a bright future judging on tonight's performance.
'I feel sick for Exeter'
Exeter 2-3 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
I can't imagine how Exeter boss Gary Caldwell feels right now, I feel sick myself!
A moment of madness, just crazy. Exeter were in no danger. Morgan Rogers wasn't going to have a shot.
GOAL - Exeter 2-3 Middlesbrough
Emmanuel Latte Lath pen (83 mins)
No mistake! Emmanuel Latte Lath strokes it into the bottom corner.
PENALTY TO MIDDLESBROUGH
Exeter 2-2 Middlesbrough
Morgan Rogers has his shirt tugged inside the box by Ryan Trevitt and Middlesbrough have a penalty!
Post update
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
Benches will be key tonight, especially for the final 10 minutes. This will really be a squad game tonight.
Post update
Exeter 2-2 Middlesbrough
Quick counter by Middlesbrough and Emmanuel Latte Lath is into the box but his effort is superbly denied by Viljami Sinisalo.
Post update
Mansfield Town 0-1 Port Vale
Into the final 10 minutes and it is Port Vale looking the most likely to score again as Oliver Arblaster sees an effort blocked.
'Enthralling'
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
This game has flown. You can have some games where you are looking at your watch and wondering when you can shoot off, but this is enthralling.
Post update
Exeter 2-2 Middlesbrough
Oooh not far, not far at all! Hayden Hackney goes for goal from a free kick and it curls just wide.
Great effort.
Post update
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
This is a wonderful cup tie, it really is.
Post update
A reminder there's no extra time in the League Cup, we will go straight to penalties if any tie ends all square.
Post update
Exeter 2-2 Middlesbrough
Here come Middlesbrough again as Emmanuel Latte Lath goes for goal on the edge of the box but Cheick Diabate makes a great block.
Post update
Mansfield Town 0-1 Port Vale
Port Vale win their eighth corner of the game as they continue to search for the second with just over 15 minutes to go. In comes the delivery but a header goes well wide and out for a throw.
GREAT SAVE!
Exeter 2-2 Middlesbrough
Viljami Sinisalo makes a fantastic save to deny Middlesbrough's Sam Silvera before Ryan Trevitt, on a hat-trick, comes forward before a challenge comes in.
We've got a game on here now!
Post update
Exeter 2-2 Middlesbrough
Brent Pilnick
BBC Sport at St James Park
OK, who saw that coming?
It's bouncing in here once again now. Trevitt's shot took a slight deflection on its way though and it's fired up the hosts once again.
I still think Boro will have too much, but we have got a really good cup tie on our hands.
'Game back to life'
Exeter 2-2 Middlesbrough
Nathan Jones
Former Southampton manager speaking on BBC Radio 5 Live
It was a wonderful goal and what the game needed form a neutral point of view as there was a fear Middlesbrough would run away with it, but this has now kicked it back into life.
GOAL - Exeter 2-2 Middlesbrough
Ryan Trevitt (66 mins)
The 20-year-old does it again!
It is another brilliant strike by Brentford loanee Ryan Trevitt, coming out of nowhere with a thumping effort from outside the box.
Game back on!