WIMBLEDON, England -- Novak Djokovic was upset in straight sets by Marat Safin in the second round at Wimbledon on Wednesday, ending the Serb's chances of testing his theory about Roger Federer 's vulnerability. The 75th-ranked Safin won 6-4, 7-6 (3), 6-2 on Centre Court. It was a stunning loss for the third-ranked Djokovic, who came to the All England Club confident after beating top-ranked ... East Coast Bias found this 3 hours ago on sports.espn.go.com [link] Find more top sports news, videos, and blogs on BallHype: Tennis , Novak Djokovic , Marat Safin ...