Question of the week [post comments]

Last night Juan Del Potro beat Roger Federer in the U.S Open. It went into 5 sets.In the last set Del Potro just ran away with it. Federer could be the best player ever. You can vote for the question of the week. Make sure you vote. The people who he is competing against are: Pete Sampras, John Macnroe,Arthur Ashe, Andre Agassi, and Bjorn Bong. Vote now!