Miguel Berchelt-Francisco Vargas II undercard features Fazliddin Gaibnazarov, Miguel Marriaga

Top Rank’s May 11th night of rematches will feature some of the promotion’s better prospects before Miguel Berchelt, Francisco Vargas, Emanuel Navarrete, and Isaac Dogboe settle their respective differences. 2016 Olympic gold medalist Fazliddin Gaibnazarov leads the ESPN+ lineup alongside unbeatens like Jason Sanchez and Carlos Castro, plus former title challenger Miguel Marriaga.

Gaibnazarov (7-0, 4 KO) faces 6’4” super lightweight Mykal Fox (19-1, 5 KO), who gave another prospect in Shohjahon Ergashev everything he could handle on Showtime this past February. Mykal is, as I’d suspected, the brother of fellow beanpole Alantez Fox.

Sanchez (14-0, 7 KO) fights Adeilson Dos Santos (19-6, 15 KO), who appears to have found himself a niche as a victim to the stars. The Brazilian is 1-4 in his last five, including losses to Jessie Magdaleno, Michael Conlan, and Jamel Herring. Castro (22-0, 9 KO) handily defeated Genesis Servania his last time out and is taking a step back against Mario Alberto Diaz (18-2, 7 KO).

Marriaga (27-3, 23 KO) is still on the comeback trail after consecutive losses to Oscar Valdez and Vasiliy Lomachenko and should easily make it three straight wins against Mexican journeyman Naciff Martinez (23-10-3).