Grant (ankle) isn't participating in Wednesday's practice, Safid Deen of the South Florida Sun Sentinel reports.
Grant is reportedly nursing a high-ankle sprain, which could result in him being placed on injured reserve if the Dolphins are in need of another roster spot prior to Sunday's game against Buffalo. Ian Rapoport of NFL Network has reported that Grant will miss the regular-season finale, though the Dolphins haven't yet made an official call on the wideout's status.