For the very first time in his record-breaking career, six-time Wimbledon champion Roger Federer couldn't hang on to a two-set lead at a Grand Slam tournament. The 16-time major champion, who was playing in his 29th straight Grand Slam quarterfinal, won the first two sets against Jo-Wilfried Tsonga at Wimbledon on Wednesday, but squandered the lead and lost 3-6, 6-7 (3), 6-4, 6-4, 6-4. More...