Summary- David Beckham made his MLS debut in front of a sold-out crowd of 46,686 against D.C. United at RFK Stadium in Washington, D.C. on August 9, 2007. L.A. Galaxy lost 1-0. CAPTION: Los Angeles Galaxy captain David Beckham, sweats profusely during a press conference, after his match against D.C. United. Beckham made his MLS debut when he entered the game in the 72nd minute.