ESPN's Jamison Hensley is reporting RB Bernard Pierce has been diagnosed with a concussion. Although details aren't immediately available, Hensley said it was "mild", which drew the ire of some fans, as concussions are never truly mild and should be taken seriously. It's only speculation, but it seems Pierce should still be ready to go in Week 1.
It's a situation to monitor. The Ravens are already thin at RB with Ray Rice suspended for the first two games of the season. If Pierce was to miss time, there would likely be a committee approach of RBs Lorenzo Taliaferro and Justin Forsett .