Wheelchair Tennis follows able-bodied Tennis rules and athletes must have high levels of skill, fitness and strategy. The only difference in Wheelchair Tennis competitions is that the ball is allowed to bounce two times – the first bounce being within the bounds of the court. The player must return the ball before it hits the ground a third time. The wheelchair is considered part of the body and all applicable rules, which apply to a player’s body, apply to the wheelchair. Athletes must have a permanent substantial or total loss of function in one or both legs. For the quad division the eligibility criteria require that a player has a disability in three or more limbs. The events are singles (between two players) and doubles (between two pairs). To win a set an athlete or pair must win six games, with a tie-break employed at 6:6. The winner of the game is the player or pair to win two sets (best-of- three set match).