Under heavy duress behind the Bills' starting offensive line against the Browns in Friday's second preseason game, AJ McCarron sustained a hairline fracture to his right collarbone, the Buffalo News' Vic Carucci first reported.
McCarron, whom the Bills signed to a two-year, $10 million contract this offseason as a potential veteran place holder before trading up in Round 1 to select Josh Allen seventh overall, was making his first start, one week after Nate Peterman got the call in Buffalo's three-man QB competition.
Well, now it appears to be a two-man battle, at least for a while, as McCarron's injury is expected to sideline him several weeks.