Allen (elbow) won't be available to start Sunday's game against the Colts, Dianna Russini of ESPN reports. The report adds that there's concern within the organization that Allen "will miss weeks."

Buffalo hasn't officially ruled the quarterback out for Week 7 action, but coach Sean McDermott did acknowledge that he views the signal-caller as "week to week." Per Russini, the Bills haven't decided who will start at quarterback during the upcoming weekend, but there's a "feeling in the organization" that veteran Derek Anderson "has to start" over Nathan Peterman, who struggled in relief of Allen during the Week 6 loss to the Texans.