Buffalo Bills defensive end Gregory Rousseau is week-to-week with an ankle sprain suffered against the New York Jets, NFL Network reported Monday.
The second-year player has five sacks and nine quarterback hits in eight starts this season.
Rousseau, 22, played just 14 snaps in Sunday's loss before leaving with the injury. He has 21 tackles on the season, including seven for loss.
The Bills selected Rousseau in the firs