A week on from Tony Bellew's surprise victory over David Haye, and there's still unfinished business between the two fighters.

As thrilling as it was to watch the Liverpudlian defeat the former WBA world champion against the odds, it has to be said that Haye's gruesome Achilles injury played a massive role in the outcome.

Many boxing fans will still doubt Bellew's ability as a heavyweight.

If truth be told, few thought the fight would ever happen as he just isn't used to fighting in that weight division.

Now, the 34-year-old can either retire or seek out another big-money bout against the likes of Deontay Wilder.

Haye has been surprisingly complimentary of Bellew in the aftermath, but he appears to have serious doubts over how he would fare were he to take on a heavyweight title fight.

“OK, he beat me but I don’t think he can win a version of the world heavyweight title. No," he said, per the Sun.

“If he can get more money by fighting the likes of WBC champion Deontay Wilder or WBO champion Joseph Parker, then he will take those fights.

The fight people want to see

“But I don’t think those bouts make as much sense as fighting me for a second time because everyone wants to see us fight for a second time."

Given that Haye was so unlucky with his injury, it would definitely be interesting to see a rematch with the two men both at full fitness.

For that to happen, though, Bellew will have to decide against retirement and risk losing some of the respect he earned by beating the Bermondsey boxer.

“I have no control over what Bellew wants to do next and I’ve heard talk that he is ready to pack it all in," Haye added.

“I hope he doesn’t because I would love the chance to put the record straight — and if I do win any rematch then I’d be prepared for a third fight, a career-defining trilogy.”

Haye may have forgotten that he himself is 36 and has already retired once, so he's running out of time to make all this happen.

If Bellew knows what's best for him, he may well want to follow suit and quit while he's ahead.

Is Haye right - would Bellew have any chance in a world-title heavyweight fight? Have your say in the comments.