Professional Referee Lists and Assignments Professional referee lists and assignments for leagues around the world. North America Major League Soccer MLS Referees List MLS Referee Assignments CONCACAF CONCACAF Referee Assignments Leagues Cup Referee Assignments USL Championship and USL League One USL Referees USL Referee Assignments NWSL NWSL Referees NWSL Referee Assignments Other Sports National Basketball Association National Football League National Hockey League Europe Bundesliga (German) English Premier League English Football League Eredivisie (Dutch) La Liga (Spanish) Ligue 1 (French) Scottish Professional Football League Serie A & Serie B (Italian) UEFA Champions League UEFA Europa League UEFA Conference League UEFA Referee Categories