อ้างอิง ของ กฎผู้เล่นแต่งตั้ง

  1. ↑ Wahl, Grant (November 28, 2011). "Hollywood Ending: If this was indeed David Beckham's final game in MLS, he went out in style, carrying the Galaxy to a championship and affirming the value of star power in America". Sports Illustrated. สืบค้นเมื่อ November 25, 2011. In the first four seasons of MLS's Beckham Rule, which allowed clubs to sign up to three designated players outside the salary cap, ....