A tennis player is an athlete who competes in the sport of tennis, which is played on various surfaces like grass, clay, and hard courts. Players use a racket to hit a tennis ball over a net, aiming to score points by making the ball land in the opponent's court. Matches can be played in singles (one player against another) or doubles (two players on each side). Tennis players can compete at different levels, from local clubs to professional tournaments like the Grand Slam events, which include the Australian Open, French Open, Wimbledon, and the US Open. Successful players often train rigorously to improve their skills, strength, and strategy.