Which heavyweight fight has the best chance of being an upset?

[Joe2608]

If i'm going to be perfectly honest, Valuev over Haye just because the size difference is so huge.

[Banderivets]

Valuev Haye IMO

[Boxing Scene]

I can't believe based on Chambers beating Dimentrenko people think he can possibly beat Wlad.

GET REAL. DIMENTRENKO ISN'T WLAD.

[#1Assassin]

valuev has a good chance. all he needs to do is avoid getting knocked out, win a round or two and he might get the decision. i mean if a living legend like holyfield could get ripped of so can haye, and that wasnt even in germany. if haye doesnt knock him out he needs a shut out and he might get a SD.

chambers has little chance to beat wlad, arreola has a small chace of beating vitali too. had the tables been turned it would be diffrent though. arreola would have a legit punchers chance against wlad, even though i see wlad beating him. i could very well see chambers upsetting vitali had that fight been made. i might even had put a small wager on it depending on the odds.