Well, there was so much pre-fight animosity but I think these two fighters realise what each other's been through tonight.

They embrace each other, Bellew kisses Haye on the cheek and now the Liverpudlian is in tears.

Richie Woodhall
Former world champion on BBC Radio 5 live

An incredible upset. They both embraced, and Bellew walked him back to his corner, that was the only way he could get back. That was fantastic to see.

Haye is down again! He's out of the ropes in fact.

That's it, it's all over - Tony Bellew takes it!

David Haye is still really struggling and Bellew knows he can bide his time with rounds in the bank.

And Haye is down - not from a Bellew punch, but from having to try and throw everything into each punch with only one leg to push off from.

He misses Bellew and hits the canvas.

Richie Woodhall
Former world champion on BBC Radio 5 live

Tremendous from Bellew in that round. Haye is really struggling. His body language is pretty bad, he's turning his back on Bellew when the referee steps in to separate them and those are not good signs.

Bellew looked far too casual there and Haye finds a gap in his defence with a jab.

Haye wheels in but Bellew ducks and the Hayemaker goes flying off, almost hopping on his one good leg, towards the other side of the ring.

Bellew is the man landing the consistent blows, and the one clocking up the rounds.

Haye's still managing to land. Bellew is then given a telling off by the referee and told to keep his punches high. 

Image source, Getty Images

Haye has some strapping on his right ankle. But he marches straight in a throws a right hook.

But now Bellew is upping the pace, he tries to cut the ring off but is halted by a timeout.

Steve Bunce
Boxing pundit on BBC Radio 5 live

It's going the way of Bellew but it's a long time ago that Haye twisted his ankle. 

Bellew must be exhausted but all he needs to do is keep his distance and throw a few jabs. Haye can't chase him without falling over.

Whatever happened with all the pre-fight verbals, Haye is showing character here to keep looking for that knockout blow.

It's Bellew's to lose, but now he looks hurt too. Haye is almost playing dead before bouncing up and striking his prey.

A surprise strike to the gut seemed to have winded the Bomber.

Bellew has been going for the knockout all fight, you can see he is blowing a bit now. Oh how he would love to stop Haye after all the trash talk - but he will need to find a second wind and throw some combos. 

Image source, Getty Images

That back leg of David Haye is dead straight, he looks like he's trying to hide the pain and discomfort.

But he dives forward trying to catch the Bomber. 

Bellew rides the attack and lands a couple of body shots.

Steve Bunce
Boxing pundit on BBC Radio 5 live

Haye can only win this if Bellew is an idiot and stands there trading blows. Bellew has to stand back.

They say a boxer's power comes from the legs, well Haye still looks in discomfort and although he lands a right, Bellew is unmoved. Could it be the Achilles injury which Haye was rumored to have suffered during his camp?  

Image source, PA

This is seriously punishing.

You feel if Bellew could muster the energy to throw a punch Haye would go down again.

The Liverpudlian catches him straight on with a couple of jabs as Haye drops his hands and looks to draw the Bomber in.

Both are still in it, just.

Mike Costello
Radio 5 live boxing correspondent - ringside at London's O2 Arena

Haye is suddenly growing in confidence, inviting Bellew to come forward again. 

Surely he can't believe he can win from here?

Wow.

Another round. I'm not sure either fighter saw this coming.

Haye is relying on his guard to keep out those Bellew punches, he limps forward, almost dragging that injured leg behind him. But that means he can't set himself to throw a punch.

He tries with a left, but Bellew backs up and then pins the Hayemaker on the ropes once more.

Steve Bunce
Boxing pundit on BBC Radio 5 live

Haye has half a chance of landing one punch but Bellew has punched for five minutes and not finished it. 

Haye was holding the rope to keep himself up. This is extraordinary from Haye to keep going like this.

Haye's trainer Shane McGuigan has had the towel ready in his hand this whole round. Surely this can't go on much longer. Maybe the referee will step in? Despite the injury, Haye looks spent. 

Image source, Reuters

Haye can't move from the ropes, he's swinging and missing. He looks gone.

But Bellew is tiring too, and Haye buys a little time by grappling with the Bomber close up.

Bellew looks exhausted, but he's the man in control and the one choosing when to go for Haye and when to back off.

This is extraordinary.