For all her success in tennis, from holding the No. 1 ranking for more than a year to winning 27 titles, one question had plagued Caroline Wozniacki's career.
Roger Federer got cranky at the chair umpire for a technology flaw in his Australian Open quarterfinal match, using the rare emotional outburst as motivation.
One point after his medical timeout in the fourth set, Rafael Nadal went to the rear of the court to squat and do a knee-raise, trying to stretch out his...