Photos: Mike Alvarado, Trey Lippe-Morrison, Mayer - Workouts

The Azteca Boxing Gym in Oklahoma City hosted a media workout for the biggest fight card to hit the city in years. (photos by Mikey Williams).

In the main event, Gilberto "Zurdo" Ramirez (37-0, 25 KOs) will defend the WBO super middleweight title against fellow unbeaten Alexis Angulo (23-0, 20 KOs). And, in the special co-feature, Oklahoma City native Alex "El Cholo" Saucedo (27-0, 17 KOs) will fight veteran Lenny Zappavigna (37-3, 27 KOs) in a 140-pound slugfest.

Ramirez-Angulo, Saucedo-Zappavigna, and Robson Conceicao-Gavino Guaman will be televised live on ESPN and ESPN Deportes at 9 p.m. ET. The undercard (6:15 p.m. ET, ESPN+) will include appearances by Mike Alvarado, female fighting sensation Mikaela Mayer, and heavyweight knockout artist and Oklahoma native Trey Lippe Morrison.