ATP (Association of Tennis Professionals) is an international association of tennis professionals, also known as the Professional Tennis Players Association. Association of tennis professionals International is the "autonomous" organization of the world's male professional tennis players.

WTA (Women's Tennis Association). Founded in 1973, the players' headquarters is located in St. Petersburg, Florida. WTA's main responsibility is to be responsible for all players' problems. Players have their own agents in the Women's Tennis Association, and the Women's Professional Tennis Association decides all the rules of the whole tour and sponsors some exhibition matches, so that players can participate in some such matches without worrying about conflicts with real professional leagues.