Three-division world champ Emanuel “El Vaquero” Navarrete (38-2-1, 31KO) defends his WBO junior lightweight world title against one-time rival Oscar Valdez (32-2-0, 24KO) in an all-Mexican main event on Sunday, December 8, at Footprint Center in Phoenix, Arizona. In the co-feature, WBO featherweight world champion Rafael “El Divino” Espinoza (25-0-0, 21KO) defends his crown against Cuban star Robeisy “El Tren” Ramirez (14-2-0, 9KO), the man he dethroned to win the title last December.