Report: Bills' McCarron did not suffer fractured collarbone

Buffalo Bills quarterback AJ McCarron's collarbone injury doesn't appear to be as serious as originally thought.

Secondary tests revealed McCarron did not suffer a fracture in his collarbone, a source told ESPN's Adam Schefter. The signal-caller is considered day to day and should practice when he's no longer experiencing soreness, according to NFL Network's Ian Rapoport.

It was believed McCarron suffered a hairline fracture during Thursday's preseason contest against the Cleveland Browns, but he received a second opinion after initial tests came back "not totally conclusive."

The Bills announced rookie Josh Allen as the starting quarterback for their third preseason game against the Cincinnati Bengals. Both Allen and McCarron are competing with second-year passer Nathan Peterman for the starting role.

The Bills signed McCarron in March to a two-year contract worth $10 million.