Andre Agassi

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From 1992-96, Agassi was one of the greatest tennis players in the world — reaching the world No. 1 ranking in 1995. He took home one Wimbledon, US Open, and Australian Open title each, won three Davis Cup’s, and a Gold Medal at the 1996 Olympic Games. In 1997, Agassi admitted to using crystal meth and subsequently had the worst season of his career. Ridding himself of drugs and rededicating himself to the sport, Agassi would go on to win two Grand Slams in 1999 and three Australian Opens between 2000-03.