Is a clay surface faster than grass? Do men and women earn equal prize money? Test your mastery of tennis trivia with our quiz about the four Grand Slam events.
Umpires must wear eyeglasses with a built-in beeping signal that indicates when the ball is out of bounds. |
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Players are allotted unlimited challenges to the umpire鈥檚 calls. |
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When a difficult call arises, ball boys and ball girls are responsible for forming a consensus and informing the umpire of the proper call. |
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A computer system is used to track the path of the ball. |
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