“I am very comfortable fighting southpaw, ... both my right and left hands are powerful. My ability to switch on the fly really is amazing -- most guys are not looking for it and then BOOM, I switch to southpaw and they are on the mat. I think that is a major part of my game, and I work on that as much as I do my conventional style.”- Andre Ward By that statement, its safe to assume he's naturally orthodox, though odd, considering his best punch is the straight left.
He fights orthodox, like you said, 90% of the time, but when/if he sees a gap in an opponents defence that the southpaw stance could exploit, he subtly switches, attacks, then switches back in retreat.
