Squash is a racquet sport that was formerly called squash racquets in reference to the "squashable" soft ball used in the game. The game is played by two or four players with "standard" rackets in a four-walled court with a small, hollow rubber ball. Squash is characterized as a "high-impact" exercise that can place strain on the joints, notably the knees. Cross training and stretching is essential to play a good, pain-free game.
- Squash is an indoor racquet game played by two or four players (also known as doubles) with 'standard' rackets in a four-walled court with a sall, hollow rubber ball.