Detroit Lions running back Reggie Bush sustained a surprise injury in pre-game warmups, slipping on a snow-covered Lincoln Financial Field and possibly re-aggravating an existing calf injury.
Bush has appeared in 11 games this season, missing one game earlier in the year. Jay Glazer of Fox Sports reports that he will attempt to play.
The Lions face the Philadelphia Eagles on Sunday in a game with playoff implications for both sides. Detroit is trying to separate from the Chicago Bears in the NFC North, while Philadelphia needs a win to supplant the Dallas Cowboys atop the NFC East.
Bush is vital to keeping the Lions' offense balanced and has been a huge difference-maker in his first season with the team. Detroit is 1-4 when he fails to touch the ball 20 times, but the team was able to win in Week 3 against the Washington Redskins when Bush was ruled out due to injury.