Walton was a limited participant in Wednesday's practice due to a thumb injury, Safid Deen of the South Florida Sun Sentinel reports.
Walton likely picked up the injury at some point during the Week 6 loss to the Redskins, during which he accrued a career-high 75 yards on 11 touches. It's encouraging that he wasn't held out of practice entirely, and Walton will have two opportunities to upgrade to a full practice before Sunday's game against Buffalo.