Andre Agassi the line with his jokes and publicly apologized to Sampras. Agassi and Sampras met again one year later for an exhibition match at Madison Square Garden in New York in front of 19 000 spectators as Sampras defeated Agassi in two sets. On March 3, 2014, Agassi and Sampras squared off for an exhibition in London for the annual World Tennis Day. This time it was Agassi who came out on top in two straight sets. He returned to the tour in May 2017 in the position of coach to Novak Djokovic for the French Open. Agassi announced the end
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