AJ McCarron injury update: Bills QB suffers collarbone fracture, report says Unknown 01:21 The Bills may have lost starting quarterback A.J. McCarron to a severe injury. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsVladimir Guerrero Jr. not a major leaguer, still needs to develop, says Jays' GMDuke vs. Virginia Tech: Three takeaways from the Blue Devils’ loss76ers' Zhaire Smith could make G League debut this week, report saysRockies, Nolan Arenado agree to 8-year extensionStalling Celtics have made many changes but minimal progressBrad Stevens on Celtics’ big loss to Raptors: We're taking too many shortcuts defensively