Concrete covered with rubberized surface at Rams stadium
The previous two games, opposing players slipped on the concrete.
On Nov. 1, 49ers running back Reggie Bush injured his left knee when he couldn't decelerate quickly enough, slid and fell on the concrete before stopping at the wall to the stands. Bush is out for the season.
Cleveland quarterback Josh McCown slipped on the concrete and couldn't stop, banging his left shoulder on the padded wall on Oct. 25.
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