Andre Agassi

53 career tournament wins including the career grand slam; Wimbledon (1992), U.S. Open (1994,99), Australian Open (1995,2000,2001,2003), French Open (1999); helped U.S. win 2 Davis Cup finals (1990, 92); regained the world No. 1 ranking in 1999 for the first time since 1996.