Contemplating the ethics of being hit by an opponent's shot

Novak Djokovic recoils after being hit in the chin by Rafael Nadal's shot in the Rogers Cup semifinals.

Minas Panagiotakis/Icon SMI

"Two days before the 1969 French championships, in a Berlin dressing room, Taylor's left fist had collided with Hewitt's left eye," Bellamy wrote. "Taylor had to scratch. Bruised knuckles and a swollen hand would not allow him to grip a racket. But Hewitt played and won a couple of matches. It seemed that Taylor had won the war but lost the peace."