Retired Kansas City Chiefs defensive end Bobby Bell signs a 2014 Kansas City Chiefs yearbook for Chief Master Sgt. Shawn Drinkard, 509th Bomb Wing command chief, at Whiteman Air Force Base, Mo., Nov. 18, 2014. Bell was a three-time NFL Pro Bowl selectee during his professional football career. (U.S. Air Force photo by Airman 1st Class Joel Pfiester/Released)