Haye hasn't proven his stamina yet. But other than against Valuev he does usually have a high output at least for the first 5 rounds. Whether he can maintain a high output over 12 remains to be seen but he's just as likely to be able to as not.

Nameless, your comment regarding 'england needing a boxer to look at' seems a bit eroneous.

On Haye, I think the only logical thing to say is that the jurys still out. We can but guess which way they will go but some seem very keen to have him hung without trial. (I accept that his loudmouth, arrogance and suspected ducking aren't endearing qualities).