2002 Wimbledon Championships – Men's Singles the top 17 seeds were knocked out before the fourth round. This granted relatively unknown players an unusually high chance of success, especially as Hewitt and Henman were in the same half of the draw and played each other in the semi-finals. In one of the biggest upsets in Wimbledon history, seven-time champion Pete Sampras was eliminated by lucky loser George Bastl of Switzerland in the second round. It would be Sampras' final match ever at Wimbledon. The 1992 champion Andre Agassi suffered a second-round defeat to unseeded Paradorn Srichaphan of Thailand, while future eight-time champion Roger Federer was defeated
Doping in tennis and International Tennis Federation (ITF) led a combined anti-doping initiative in professional tennis. Following the joint initiative between the ATP and WTA, the International Tennis Federation (ITF) became the sole governing body for professional tennis anti-doping initiatives in 2007, as the Association of Tennis Professionals (ATP World Tour) and Women's Tennis Association (WTA World Tour) moved towards a player-focused organisation and administrative role. Other bodies that regulate doping within tennis on a national level include the United States Anti-Doping Agency. In 1997, Andre Agassi returned a positive drug test for the use of methamphetamine. A joint investigation carried out by