Referees Fotis Bazakos Allen Chapman Alex Chilowicz Marcos DeOliveira Joe Dickerson Ismail Elfath Drew Fischer Tim Ford Jon Freemon Guido Gonzales Jr Pierre-Luc Lauziere Jair Marrufo Rosendo Mendoza Ismir Pekmic Chris Penso Tori Penso Silviu Petrescu Victor Rivas Nima Saghafi Robert Sibiga Kevin Stott Lukasz Szpala Ramy Touchan Ted Unkel Rubiel Vazquez Armando Villarreal