Round Eightpublished at 22:36 British Summer Time 31 May 2014
Froch attacks the body with a right hand, but is hurt by a Groves jab. Another solid right lands on the side of Froch's face.
Summary
Carl Froch knocks out George Groves in the eighth round
Live fight reaction on BBC Radio 5 live
Froch: "This is the best moment in my boxing career"
"One of the great knockout punches of all time" - Mike Costello
Undercard: Wins for DeGale, Joshua, McDonnell, Mitchell
Round Eightpublished at 22:36 British Summer Time 31 May 2014
Postpublished at 22:35 British Summer Time 31 May 2014
Trainer Rob McCracken to Carl Froch: "You have to close the gap on him, you are standing outside too long. You have five rounds to go, you have to stop hitting him with the odd jab. Move your head."
Postpublished at 22:35 British Summer Time 31 May 2014
Richie Woodhall
Former super-middleweight world champion on BBC Radio 5 live"I have got this 4-3 to Carl Froch."
Postpublished at 22:34 British Summer Time 31 May 2014
Carl Froch's corner tell him he's got to win every remaining round. Are they right?
Get involved 81111 (UK)published at 22:34 British Summer Time 31 May 2014
Steve Thomas: Can't believe I'm glued to BBC Sport on my phone and watching a film with the Missus, she's not happy.
Round Sevenpublished at 22:34 British Summer Time 31 May 2014
A clubbing shot from Froch wobbles Groves briefly, who responds with a couple of uppercuts. This is about to become a humdinger.
Image source, AFPRound Sevenpublished at 22:33 British Summer Time 31 May 2014
Froch lands a solid right but Groves counters and connects. Fascinating.
Get involved #bbcboxingpublished at 22:32 British Summer Time 31 May 2014
William Searle:, external My heart is pounding, so worried that Groves will catch Froch badly with that right. What a sport this is!
Round Sevenpublished at 22:32 British Summer Time 31 May 2014
Into the second half of the fight now. Froch territory? Groves connect with a booming shot which sees Froch back-pedal. The challenger gets giddy and starts to unload as the Cobra takes stock.
Postpublished at 22:31 British Summer Time 31 May 2014
Steve Bunce
BBC Radio 5 live boxing pundit"This was the round that the psychologist said Froch suffers in but I think Froch took that round. I'm staggered that Groves is taking these punches and trading with him. What about this, is Groves too over confident?"
Postpublished at 22:31 British Summer Time 31 May 2014
Richie Woodhall
Former super-middleweight world champion on BBC Radio 5 live"The problem that George has got here is that he slowed down for some reason, maybe it is the occasion or the nerves, maybe he is trying to get into his second wind. He has to keep going with his speed, he lost it for a minute and that suited Carl Froch."
Get involved 81111 (UK)published at 22:31 British Summer Time 31 May 2014
AP: Groves is fighting like the defending champ and Froch is looking like the challenger. George Groves is showing incredible maturity here.
Image source, AFPGet involved #bbcboxingpublished at 22:30 British Summer Time 31 May 2014
Verity:, external Come on Froch prove they were right to finish it how they did last time!! You can do it!
Alex Saunders-Smith:, external Reckon groves will pinch this, speed will make all the difference.
Ben Channon:, external All the neutrals want Groves to win! Definitely the better fighter.
Round Sixpublished at 22:30 British Summer Time 31 May 2014
Froch jabs, Groves counters. The Cobra pushes his opponent onto the ropes with a flurry of punches and the ref intervenes. Froch coming to the fore now.
Round Sixpublished at 22:29 British Summer Time 31 May 2014
Both men look for an opening - an overhand right from Groves connects. Froch again leads with his left - looking to open up space for his right hand, which does seem to be hurting the challenger.
Round Sixpublished at 22:27 British Summer Time 31 May 2014
The effect of Froch's punches are now showing on Groves's face. The pair meet in the centre and continue to trade.
Postpublished at 22:27 British Summer Time 31 May 2014
Richie Woodhall
Former super-middleweight world champion on BBC Radio 5 live"What's happening is Carl is dragging Groves into a toe-to-toe battle, he tried it on with Froch and he came off second best. He's got to hit and move."
Image source, AFPPostpublished at 22:26 British Summer Time 31 May 2014
Steve Bunce
BBC Radio 5 live boxing pundit"It took 12 minutes and then it happened, we saw that degree of urgency from Carl Froch. The punches were not all brilliant but he was forceful and showed that degree of strength. George could have had a wander, why was he trading?
Get involved 81111 (UK)published at 22:26 British Summer Time 31 May 2014
James Cornwall: Come on George keep your head your the better fighter, you can win this.
Round Fivepublished at 22:25 British Summer Time 31 May 2014
Groves throws a right and Froch's legs appear to stiffen. Groves is beginning to engage as Froch takes the upper hand - has the fiery red head come out? The pair slug it out in the centre of the ring. Froch is connecting with some solid shots. The bell goes.