Concussions Ended Jahvid Best's Football Career, Not His Olympic DreamConcussions ended Jahvid Best's pro-football career early, but now his track career has taken off and he's Rio-bound.
Lions Cut Concussion-Plagued Former Cal Star Jahvid BestThe Detroit Lions have released running back Jahvid Best, a first-round draft pick from 2010 who hasn’t played since October 2011 because of concussion problems.
Daily Madden: Jahvid Best Honored For His Battle With ConcussionsFormer Cal star and Detroit Lions running back Jahvid Best was honored Tuesday with the NFL's Ed Block Courage award for his "steadfast dedication and determination" in trying to return to the field after suffering two more concussions last season. Best hasn't played since game six last year, and is sidelined through this season.

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