To be honest with you, Rees is going to be a big underdog...and you're right he's unproven. But I'm going to point to a recent example, that of Kelly Pavlik. Personally, there was nothing on his record until Edison Miranda, and with fighters that have developed undefeated records to this extent, their first test will always be a big one, and I think we'll get to see whether Rees will sink or swim here this weekend.

M'baye is way away from being the greatest champion, and so nearly lost last time out, so no better time for Rees to get his shot.