How does the challenger work?

Answer 1

In each set, a player gets 3 challenges. Immediately after the ball is called in and an opponent thinks it is out (or the other way around) a player can use one of his or her challenges. If he or she is correct, they will still have three challenge. Upon a incorrect challenge call a player will lose one of their challenges. If a set goes onto a tiebreak, each player receives an extra challenge. (If a player had all three they will not have a fourth). Unfortunately this is only the case for hard court matches. On clay courts the chair will check the mark on the court and make a call based on their discretion.

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Nothing wrong with this answer, I would just like to add to the fact about the French Open. Even though marks are left on the court from the ball, having the umpire check it this way gives rise to many problems. First of all, most of the time there anargumentover which is the right mark. Secondly, even if the umpire does choose the right mark, the impact of the ball scatters the clay surrounding it, sometimes making the mark bigger than the actual area the ball hit. This pretty much means that it would look like the ball was on the line, even if it wasn't.