There is concern from the New England Patriots that rookie defensive end Derek Rivers suffered a season-ending knee injury during the team's joint practice with the Houston Texans on Wednesday.
ESPN's Field Yates and Mike Reiss reported the Patriots "fear" Rivers will miss the entire 2017 season after injuring his left leg.
Reiss reported Thursday that Rivers was "walking with a noticeable limp" following a kickoff drill against the Texans, and he returned to Boston for more tests on his knee and leg.
Comcast SportsNet's Phil Perry noted Rivers' "left leg seemed to buckle underneath him" as he tried to plant his foot and change direction.