The type of surface a tennis player plays on affects the chances and types of injury or lingering pain. Out of the three, hard court surface could cause the most damage to your body. “My personal experience has shown that hard courts are tough on the joints, just from the lack of give,” said Donna Doherty, the former editor in chief and vice president of Tennis Magazine. There are three main playing surfaces in tennis — clay, hard court, and grass. Clay courts are made from crushed brick.