Key Biscane, Florida: Novak Djokovic benefited from an erroneous call and claimed he didn't realize he had broken the rules. When Andy Murray walked to the net and challenged him about it, Djokovic responded with a shrug and a sheepish smile.
Murray lost the dispute, and the match. The pivotal ruling against the defending champion helped Djokovic win 7-5, 6-3 in the quarterfinals of the Sony Open.
The point in question occurred at the start of the 12th game, with Murray serving at 5-6. Djokovic charged forward to volley a short ball and hit it for a winner.