Grigor Dimitrov scored a huge win over Wimbledon champion Novak Djokovic—in a wet T-shirt contest. After a practice together, the friends squeezed out as much sweat from their shirts as possible.

In the midst of his three-set Indian Wells final against a fully resurgent Rafael Nadal on Sunday, Juan Martin del Potro pulled his white shirt over ... event was Grigor Dimitrov's Nike polo ...