Morris (ankle) was listed as a non-participant in Monday's walk-through, Alaina Getzenberg of ESPN.com reports.
Morris was inactive for Sunday's game against New England, and it's unclear if he'll be able to return to action for Thursday night's game against the Buccaneers. Morris' status for the contest gains added import with Dawson Knox slated to undergo wrist surgery. For now, the Bills' top healthy tight end is Dalton Kincaid, with Joel Wilson a candidate to be elevated from the team's practice squad ahead of Week 8 action.