Originally Posted by floridatennisdude
So...after you question the allotted 2 or 3 challenges, your opponent can just start playing "lines are out"? kids would start hooking like crazy
But thats why there is an umpire. Questioning calls that are not close and will never be overturned just seem to be part of some attempt to disrupt the opponents, put pressure on officials and in my opinion should not be allowed within the rules.