Oakland Raiders’ Charles Woodson takes the field before the game against the Dallas Cowboys at O.co Coliseum in Oakland on Friday, Aug. 9, 2013. (Jim
Oakland Raiders' Charles Woodson takes the field before the game against the Dallas Cowboys at O.co Coliseum in Oakland on Friday, Aug. 9, 2013. (Jim Gensheimer/Bay Area News Group) ( Jim Gensheimer )