Philadelphia Eagles tight end Zach Ertz was forced to leave the field after he went down with an apparent head injury.
The team ruled him out for the rest of the game.
Ertz has been banged up at times this season. The five-year veteran missed Philadelphia's Week 9 game against the against the Denver Broncos with a hamstring injury.
It took Ertz time to find his rhythm with quarterback Carson Wentz, but he settled in to record a career-high 78 receptions and led the Eagles with 816 receiving yards last season.