An injury has forced Combate Americas officials to change both the main event and another bout set for Friday from the AVA Amphitheater at Casino Del Sol in Tucscon, Arizona.
The event airs live on Univision (12 a.m. ET) and TUDN.
In the new bantamweight (135 pounds) main event announced, former world champion Jose “Pochito” Alday (13-4-1), originally scheduled to battle Andre Barquero, will face off with dangerous veteran Joby Sanchez (12-5).
A knee injury sustained during training has forced Barquero to withdraw from the main event contest.
Jose Aldo Vs. Gustavo Lopez
The first world champion in Combate Americas history, the 28-year-old Alday of Tucson via Hermosillo, Son., Mexico is looking to reel off his second straight win after earning a unanimous decision over Argentina’s Juan Pablo Gonzalez in a thrilling, action-packed affair at AVA Amphitheater on June 7.
Sanchez is a 28-year-old native of Albuquerque, N.M. and a member of the famed Jackson-Wink MMA fight team.
Fighting for the first time under the promotion of Combate Americas, Sanchez has earned 8 of his 12 career victories by way of (T)KO or submission since he made his professional debut in 2011.
In another change to the main card lineup announced today, Anthony “El Toro” Birchak (15-6), who was slated to face Jose Luis “Puppy” Calvo in a bantamweight matchup, will square off with Erik Aguilar Radleim (5-4) after visa issues prevented Calvo, a native of Santo Domingo de Heredia, Costa Rica, from being eligible to compete.
Radleim is a 29-year-old submission expert hailing from Tijuana, B.C., Mexico. He is looking to rebound from two consecutive defeats, the first of which snapped a three-fight win streak.
Combate Americas Returns To Tucson
Priced from $15, tickets for the Combate Americas live MMA event are on sale at CombateAmericas.com/Tucson. 
COMBATE AMERICAS FIGHT CARD
Bantamweight: Jose Alday vs. Joby Sanchez
Catchweight: Anthony Birchak vs. Erik Aguilar Radleim
Bantamweight: Marilia Morais vs. Paola Ramirez
Flyweight: Jaime Alvarez vs. Joao Camilo
Bantamweight: Guillermo Torres vs. Orlando Jimenez
Welterweight: Raymond Pina vs. Michael Robertson
Catchweight (140 lbs.): Valerie Quintero vs. Lucero Acosta
Flyweight: Humberto Duarte vs. Jesus Rivas
Featherweight: Dorian Ramos vs. Anthony Elijah
Bantamweight: Chris Quiroz vs. Gabe Brown
Flyweight: Erick Barreras vs. Aaron Hernandez