- Although Jamaal Charles showed no signs of a concussion when he was checked after a helmet-to-helmet hit he took from former teammate Brandon Flowers on Sunday, the running back was placed in the concussion protocol this week after comments he made Tuesday on ESPN Radio. Kansas City Chiefs trainer Rick Burkholder said Wednesday that Charles was placed in the protocol Tuesday and passed all the tests. Charles will practice Wednesday, but the team will continue to monitor his symptoms. Read more http://espn.go.com/nfl/story/_/id/1...hiefs-monitor-jamaal-charles-concussion-signs