They are only a few days away from their grudge match.

Slated to fight last December and postponed due to injury, heavyweight rivals David Haye and Tony Bellew will collide for the second time on Saturday night at the O2 Arena in London.

They met at the same venue last March, in a highly anticipated fight. A massive underdog on paper, Bellew shocked everyone when he stopped Haye in the eleventh round of the contest.

There were a lot of critics of the outcome, because Haye ruptured his Achilles during the fight and became a one-legged boxer for the second half of the bout.

Eventually he was stopped, after dropped for the second time and his corner threw in the towel.

After undergoing surgery for he injury, a rematch was set for December, but it was pushed back after Haye withdrew with a training injury to his bicep.

Former WBC cruiserweight champion Bellew has become far less of an underdog since last year’s unexpected victory but recognises he is still expected to lose.

He also agreed with Haye’s assertion that he is not comfortable at heavyweight, but dismissed suggestions of potential size disadvantage because Haye is also a natural cruiserweight.

“I tried to become a heavyweight but I’m not, I’m a cruiserweight,” he said. “I’m facing another former cruiserweight.

“He’s close to the end; I’m close to another chapter. He makes a big mistake saying ‘Enjoy your 15 minutes of fame’ but this ain’t my last 15 minutes, it’s his.

“I was born the underdog. I’m always the underdog; the guy who’s supposed to get knocked out. I’m fighting for my life on Saturday night and I’m under no illusions; if I make one mistake, I’ll end up in St John’s (hospital).

“I’m supposed to get knocked out in two rounds, but I’m going to shock a few more people.”