I'll go with round 8 although I don't have much confidence Joshua stops him. I think AJ has hit a plateau since the klitschko fight.
If there is a stoppage it would have to be an early one. So I would go with 5th round However if Povetkin can avoid that fate the most likely scenario is that it lasts the full 12.
Will be a late stoppage probably, stopped by the bodybuilders biased referee for a mythical accumulation of inaccurate missed punches . I just hope the bomb squad jump in the ring afterwards and get in this guys face for ducking the devastating bronze bomber! Lol.
Around 9-10th the referee will stop Povetkin from delivering any more unnecessary damage to Big Josh.
When will Joshua's wrapping come apart again so he can get his breath back? That is the real question
If he stops him.....Povetkin is 'shot'. If he beats him on points.....Joshua has been 'exposed'. Joshua by DQ.
Pov will have to take risks to have a chance. He won't win on points in UK. So he'll be more open and I think that means a good chance of an earliesh AJ stoppage - round 5 or 6.