Watson (Achilles) has been ruled out for Sunday's game against the Bills, Daniel Oyefusi of ESPN.com reports.
Per Oyefusi, coach Kevin Stefanski said the Browns will make a decision on whether to add Watson back to the active roster prior to the team's Week 17 game against Pittsburgh. An official transaction activating Watson from the reserve/PUP list will have to be made by next Tuesday, or Watson will be ineligible to play this season. Shedeur Sanders will start Sunday against the Bills.