Drug testing conducted by the Men’s Tennis Council began in the late 1980s and focused on recreational drugs.

· When the ATP Tour was formed in 1990, the governing body of the men’s professional tennis circuit extended the testing to include performance-enhancing drugs.

· The ITF and WTA Tour also had comprehensive anti-doping Programmes, and in 1993 the three bodies created a joint anti-doping Programme that covered the whole of tennis, including (through the ITF) the independent Grand Slam tournaments.

· In 2006 the ITF assumed responsibility for the management, administration and enforcement of the Programme at ATP-sanctioned events.

· In 2007 the ITF assumed responsibility for anti-doping matters at WTA-sanctioned events, leading to a unified Tennis Anti-Doping Programme applying across all tennis events.