Has anyone else noticed that there seem to be a lot of medical timeouts in grand slam finals due to "groin" injuries that allow players to leave the court and disrupt the rythm of their opponent. I wouldn't mind the players using the timeouts if they are truly injured, but it seems as though they always seem to take it when the other player happens to break their serve or get "hot". I've seen both Djokovic and Federer use this tactic several times especially in grand slam finals. Perhaps they should implement a rule that if you have to use a timeout you get mildly penalized in some way in order to dissuade players from abusing it. For example, you lose your challenges or something in order to cut back on it.