Tipsarevic ousted Djokovic 7-6 (7-2), 6-3 to set up a semifinal meeting with Roger Federer. Djokovic failed to convert any of his seven break opportunities and lost for the second time in six matches against Tipsarevic.
Federer reached the semifinals with a 6-4, 6-4 victory over David Ferrer. Those two have met 13 times and Ferrer has never won.
The other semifinal will send Tomas Berdych against Juan Martin del Potro. Berdych knocked off Verdasco 6-1, 6-2 and del Potro was a 6-3, 6-4 winner over Alexandr Dolgopolov.
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