A clay court is a type of tennis surface made from crushed brick, stone, or other materials. It is known for its distinctive red or green color and provides a slower playing experience compared to other surfaces like grass or hard courts. The texture of the clay allows for a unique ball bounce, which can affect the speed and spin of the game. Clay courts are commonly used in professional tennis tournaments, including the famous French Open. Players often need to adjust their strategies when playing on clay, as the surface can lead to longer rallies and requires good footwork and stamina.