Fazliddin “Fayzi” Gaibnazarov (7-0, 4 KOs) is on the fast track to world title contention. Gaibnazarov, a 2016 Olympic gold medalist for his native Uzbekistan, will face the toughest — and tallest — test of his career against the 6-foot-3 Mykal “The Professor” Fox (19-1, 5 KOs) in a 10-round super lightweight showdown from the Tucson Arena. Fox will have a roughly nine-inch height advantage over Gaibnazarov.
In the main event, WBC super featherweight champion Miguel “El Alacrán” Berchelt will make the fifth defense of his belt against Francisco “El Bandido” Vargas in a rematch of their 2017 Fight of the Year contender, won by Berchelt via 11th-round knockout. In the co-feature, WBO junior featherweight champion Emanuel Navarrete will look to repeat the deed against Isaac “Royal Storm” Dogboe in a rematch of their Dec. 8 bout, won by Navarrete via unanimous decision.
In other action, Albuquerque native and top featherweight prospect Jason Sanchez (14-0, 7 KOs) will face former world title challenger Adeilson Dos Santos (19-6, 15 KOs) in an eight-rounder.
Phoenix native Carlos Castro (22-0, 9 KOs) will defend his WBC Continental Americas super bantamweight belt in a 10-rounder against Mario Alberto Diaz (18-2, 7 KOs). Castro is coming off an upset win over former world title challenger Genesis Servania in February.
Three-time world title challenger Miguel Marriaga (27-3, 23 KOs) returns to action in an eight-round featherweight bout against Naciff Martinez (23-10-3, 9 KOs).
Super lightweight prospect Miguel Parra (16-1-1, 11 KOs) hopes to make it eight wins in a row versus David Morales (13-10, 13 KOs) in an eight-rounder.
Tucson-based middleweight prospect Manny Guajardo (4-0, 0 KOs) will look to impress the hometown fans in a four-rounder against Jonathan Espino (2-3, 2 KOs).
In a four-round welterweight rematch featuring a pair of local favorites, Nogales’ Judas Estrada (1-1-1, 1 KO) will face Tucson’s Christopher Gonzalez (3-0-1, 0 KOs). Estrada and Gonzalez fought to a draw last November in a crowd-pleasing brawl.
Phoenix native Carlos Velasquez (1-0, 0 KOs) will face an opponent to be named in a four-rounder at lightweight.