Watts (concussion) was estimated to be a non-participant at the Jets' walkthrough practice Wednesday, Rich Cimini of ESPN.com reports.
Watts suffered a concussion in the team's loss to the Jaguars in Week 15, and his inability to participate to open the week comes as no surprise. The defensive end will have to clear concussion protocol to play in Week 16, and that seems like quite the uphill battle at the moment.