Arizona Diamondbacks Scoreboard Dedication Ceremony
Col. Robert Sylvester, 56th Mission Support Group commander, and Mark Grace, former Arizona Diamondbacks first baseman, cut a ribbon during the scoreboard ribbon cutting ceremony April 23, 2018, at Luke Air Force Base, Ariz. The Diamondbacks, together with Arizona Public Service, presented Luke AFB with a new scoreboard for field number three. (U.S. Air Force photo by Senior Airman Devante Williams)