One More Thing: How about Agassi, who is nearly eligible for Social Security, hanging on against Ivo Karlovic in three tiebreaker sets? Ivo is a powerhouse server. Plus he's nearly a foot taller than Andre. Sure, he's not exactly a player's player, but he has the kind of pace that can wear down a has-been pretty quickly.
If ever there was a test for those creaky old bones, the Croatian Sensation was it. Kudos to Andre.