For safety Jaquan Brisker, he's not only learning a new system, but also getting his feet back under him after his season ended in Week 5 from what was eventually diagnosed as a vestibular concussion on a tackle,

Concussions can affect players differently, though Brisker isn't sure why this particular one kept him off the field for as long as it did. It was a serious issue, however, and ma

But the return to active duty of another defensive back, Jaquan Brisker, was a welcome sight. Brisker said it felt great to be back on the football field. The Bears safety missed the final 11 games last season because of a concussion.