Spector (calf) is listed as questionable ahead of Sunday's matchup against the Colts.
Spector recorded five tackles (three solo) during Sunday's 31-10 win at Seattle.
Spector will start at middle linebacker Monday against the Jaguars, Joe Buscaglia of The Athletic reports.
Spector recorded 10 tackles (seven solo) during Thursday's 31-10 win over the Dolphins.
Spector (calf) was left off the Bills' injury report Wednesday ahead of the team's regular-season opener Sunday against the Cardinals.
Spector (back) is competing with Dorian Williams for Buffalo's top backup role at linebacker, Joe Buscaglia of The Athletic reports.
Spector (back) is out for Sunday's game versus the Chiefs, Alaina Getzenberg of ESPN.com reports.
Spector (back) didn't practice Thursday.
Spector is questionable to return to Monday's matchup with the Steelers due to a back injury, Alaina Getzenberg of ESPN.com reports.
Spector (hamstring) was a full participant in Friday's practice.