Antonio “El Gigante” Mireles is ready for prime time. The 6-foot-9, 270-pound heavyweight southpaw will return in a six-round clash against Patrick Mailata on Saturday, March 25, at Save Mart Center in Fresno, California.

Mireles-Mailata will open the televised tripleheader headlined by the junior welterweight showdown between Jose Ramirez and Richard “RC” Commey and the minimumweight title unification bout between WBA champion Seniesa Estrada and WBC queen Tina Rupprecht.

Ramirez-Commey, Estrada-Rupprecht and Mireles-Mailata will be broadcast live on ESPN, ESPN Deportes and ESPN+ at 10 p.m. ET/7 p.m. PT. Promoted by Top Rank, in association with DiBella Entertainment.

Mireles (6-0, 6 KOs) is a Mexican-American prospect from Des Moines, Iowa. As an amateur, he won several national tournaments and signed with Top Rank in September 2021. Mireles made his pro debut the following month on the undercard of the Emanuel Navarrete-Joet Gonzalez main event in San Diego.

Under the tutelage of Robert Garcia, he has maintained a 100 percent knockout ratio and is coming off a first-round knockout against Eric Perry last November.

Mailata (6-1, 3 KOs) is a Samoan-born prospect who had a decorated amateur career representing New Zealand. Mailata has won two straight since a majority decision loss to Kingsley Ibeh.