Get ready for an unforgettable night of boxing action as two world championship rematches take center stage. On Saturday, Dec. 7, at the Footprint Center in Phoenix, Arizona, three-division world champion Emanuel "El Vaquero" Navarrete will defend his WBO junior lightweight world title against his longtime rival Oscar Valdez in an explosive all-Mexican main event. In the co-main event, WBO featherweight world champion Rafael “El Divino” Espinoza will put his title on the line against Cuban star Robeisy "El Tren" Ramirez. This marks their second meeting after Espinoza dethroned Ramirez in December 2023. Promoted by Top Rank, these two highly anticipated rematches—Navarrete vs. Valdez II and Espinoza vs. Ramirez II—will be broadcast live on ESPN, ESPN Deportes, and ESPN+ at 10:30 p.m. ET/7:30 p.m. PT. Viewers in the U.K. and Ireland can catch all the action on Sky Sports. Fight Details and Ticket Information Tickets for this exciting night of championship boxing go on sale Friday, Oct. 25, at 12 p.m. PST via Ticketmaster.com.