Baltimore Ravens linebacker C.J. Mosley was carted off with an apparent knee injury during the first quarter of Thursday night's game against the Cincinnati Bengals at Paul Brown Stadium.
Early in the second half, the Ravens Tweeted that Mosley has a bone bruise, and his return is doubtful.
The 26-year-old former first-round pick was injured on the Ravens' first defensive series, landing awkwardly to avoid stepping on Bengals receiver Tyler Boyd.
Mosley was a Pro Bowler in three of his first four NFL seasons. He has missed two games in his career.
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