Description: In 1998, Agassi rededicated himself to tennis. After shaving his balding head just before the 1995 Australian Open, he began a rigorous conditioning program and worked his way back up the rankings by playing in Challenger Series tournaments (a circuit for professional players ranked outside the world's top 50). Perhaps most remarkably, the one-time rebel emerged as a gracious and thoughtful athlete, looked up to by younger players. After winning matches, he took to bowing and blowing two-handed kisses to spectators on each side of the court, a gesture seen as a rather humble acknowledgement of their support for him and for tennis.