sentences:  This list does not reflect the highest annual salaries or career earnings, only the top 100 largest contracts and thus is largely limited to athletes in team sports and auto racing.Athletes in individual sports, such as golf, tennis, and boxing, are not employed by a team and usually earn money primarily through event winnings.This list also does not necessarily reflect actual money collected by the athletes, since some contracts are eventually terminated (usually due to an athlete either retiring or invoking their opt-out clause).