Well, I didn't play this guy, but just today I noticed a very good 4.5 player that was a lefty - wait he was a righty - errr, both I guess. The dude would serve with his left and rally with his right. Both looked completely natural and I didn't even notice until a friend pointed it out. Crazy.
Ohh... I am a LEFTY and I love it. I am rated 4.5, but play more like 5.5. Being lefty is huge in this game... the angles are amazing and they STUN my opponents!