AJ McCarron says he’s excited to be part of Bills Mafia, and can't wait to compete for a starting job, at his introductory press conference on March 15, 2018. Sal Maiorana
The Buffalo Bills might have had a wrench thrown into their quarterback competition.
AJ McCarron suffered a hairline fracture of the collarbone Friday night against the Cleveland Browns, the Buffalo News reports.
McCarron started for the Bills, completing three of six passes for 12 yards in four drives. He was later ruled out for the remainder of the game with what the team called a right shoulder injury.