Carolina Panthers defensive end Charles Johnson, right, chases after Houston Texans quarterback Ryan Mallett, left, during a game in September. .
Carolina Panthers defensive end Charles Johnson, right, chases after Houston Texans quarterback Ryan Mallett, left, during a game in September. . Jeff Siner jsiner@charlotteobserver.com
Carolina Panthers defensive end Charles Johnson, right, chases after Houston Texans quarterback Ryan Mallett, left, during a game in September. . Jeff Siner jsiner@charlotteobserver.com