Friday’s eight-round bantamweight fight between Jonathan “Pitbull” Vidal of Puerto Rico and Mario “Yayo” Munoz of Mexico is only the eight-round semi-main event, but don’t be surprised if it steals the show on the Showtime-televised card at Turning Stone Casino in Verona, N.Y.

Vidal is from Puerto Rico, Munoz from Mexico. That alone adds intrigue because of the long and great boxing rivalry between the two countries. They are also both unbeaten. Vidal is 16-0 with eight knockouts, Munoz is 13-0-1 with 10 knockouts.

It just seems tailor-made to be the fight of the night. And Vidal, whose idol is fellow Puerto Rican Felix “Tito” Trinidad Jr., gives us a preview of what it could be like.

“I want to be smart in the ring, always, cautious,” Vidal, 23, said. “But when it’s time to put the pressure on my opponent, I definitely know how to do that.”

Munoz, just 22, had a fine amateur career, compiling a record of 140-10.

“I’m an all-around fighter,” Munoz said. “I have technique, I like to go forward. I think I do a little of everything.”

The main event will be Jorge “Destroyer” Melendez (26-2-1, 25 KOs) going against Nick “The Machine Gun” Brinson (14-1-2, 6 KOs) of Rochester, N.Y. in a middleweight bout slated for 10 rounds.