David Haye defeated Dereck Chisora with a fifth-round knockout in an enthralling contest at Upton Park.

According to BBC Sport, Haye floored Chisora with a brutal left-hook, right-hand combination in the fifth. Chisora just managed to climb to his feet but after three right hooks and two lefts from Haye the fight was over.

Earlier, Chisora had controversially rocked British rival Haye with a punch after the bell had sounded in the third round.

The victory will now open up the possibility of a fight against WBC world heavyweight champion Vitali Klitschko - who Haye has been calling out for over two years.

On a possible fight with Klitschko, Haye said:"I've sent out a very scary message. I'll be surprised if Vitali Klitschko wants to fight me after that. He will no doubt try to fight some chump nobody has ever heard of and then retire to be a politician."

For Haye this was redemption following his comprehensive points defeat to Wladimir Klitschko last year. Haye retired following that defeat but was tempted to make a return to the ring after he was involved in an ugly brawl with Chisora at a news conference in Munich in February 2012.