Anakin vs. Obi-Wan

hehe i think he was trying to imply that you have the potential to beat your tennis teacher one day....duels are analgous to that. You have off days or stuff that's bothering you, or you can be feeling awesome and defeat your teacher easily. Lots of factors involved.

I'm sure Sampras's coach loses to his student easily once Sampras became #1.

well, i do occasionally play one-on-one with him, but he doesn't give his best. if he gave his best, i'd lose 10 seconds until the game. He just tried to adjust ot my level.