Kinda a spin off thread from a spin off thread of a thread I'm curious to know if anyone has injured their opponent from striking them with a tennis ball during a tennis match? Or vice versa, have you been injured from your opponent striking you with a tennis ball in a tennis match? And when I mean "injured" I mean you weren't able to continue with your match. You needed to seek professional medical attention. Or you had to take time off from tennis because you were struck by a ball.