slip

Niners RB Reggie Bush slips on concrete, injures knee
San Francisco running back Reggie Bush slipped on the concrete beyond the team's bench and suffered a knee injury, knocking him out of Sunday's game against the Rams.
Eugenie Bouchard withdraws from US Open after suffering concussion
Reds shortstop Zack Cozart slips during game, hurts right knee
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Eugenie Bouchard withdraws from US Open after suffering concussion
Reds shortstop Zack Cozart slips during game, hurts right knee