Anderson (forearm) was officially activated from injured reserve Thursday, Mike Rodak of ESPN reports.
Anderson was originally placed on IR in early October with a fractured forearm and was designated to return mid-December. He likely wouldn't have been activated if he wasn't going to suit up Sunday against the Dolphins, which is a must-win game for the Bills in order to stay in postseason contention. However, Anderson won't be much of an IDP prospect, considering he's deployed almost exclusively on special teams.