The Chirp: Serena Williams Upset at U.S. Open

Serena Williams headed into her U.S. Open semifinal against Roberta Vinci two wins away from completing a calendar-year Grand Slam.

There will be no Grand Slam. Vinci defeated Williams, 2-6, 6-4, 6-4, stunning the tournament’s No. 1 seed to reach her first Grand Slam final. As the upset unfolded, athletes from across the sports world took to Twitter to react:

Shocking but Serena wasn't playing at her best in this tournament to me. I am still shocked

— Chris Taft (@BlessedTaft) September 11, 2015

Twitter saying Drake bad luck to sports teams. No chill

— Mohamed Massaquoi (@MJMassaquoi) September 11, 2015

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