LOS ANGELES >> When he enters the ring to try to unify two world flyweight championships Saturday night, Waipahu’s Brian Viloria will possess an unrivaled advantage.

Freddie Roach — Manny Pacquiao’s Hall-of-Fame trainer — has been helping prepare Viloria for his match against 24-year-old Mexican southpaw Hernan “Tyson” Marquez at the Los Angeles Memorial Sports Arena.

Viloria, the world’s top-ranked flyweight at 31-3 with 18 knockouts, hopes to take the World Boxing Association’s belt from the third-ranked Marquez while retaining his World Boxing Organization title.

Both fighters enter the bout with winning streaks. Viloria has won five successive fights, while Marquez has earned seven consecutive victories.

Viloria made the connection with Roach through his new trainer, Marvin Somodio, who assisted Roach for all of Pacquiao’s fights since 2009.

“Marvin’s been under his wing for a while now,” Viloria said. “He’s kind of the extention of Freddie Roach. He’s more than capable of understanding how the game is.”

Roach also made his Wild Card gym in Hollywood available for Viloria’s training and personally helped Viloria dissect Marquez’s moves and tactics.

“He’s looked over some of the tapes,” Viloria said. “I know all the tendencies of Marquez — his weaknesses, his strengths. Even Manny himself gave me a little bit of input.”

Making such imput more important is the fact that Marquez’s trainer, Robert Garcia, used to train Viloria.

“This is my moment,” said Marquez, who owns a 34-2 record with 25 knockouts. “This is the fight I wanted. Without any doubt, this is the best point of my career.”

Viloria responds with his own determination.

“All I’ve thought about and all I’ve dreamed about and ate was Marquez,” he said. “All my energy went into this fight. I’ve been training hard for the last couple of months. I look at myself like I don’t have a title right now. I’m hungry that way.”

Training at altitude and sparring against southpaws Bruno Escalante and Ray Chacon reflected that hunger.

“They helped me prepare for this fight great,” Viloria said. “They got me prepared for this fight like no other.”

Viloria expects a punishing confrontation against Marquez.

“We’ve both got power in our hands,” he said. “I don’t see this going a couple of rounds. This is the type of fight that you expect to get laid out.”

If he remains standing, Viloria said, he will express himself in typical Hawaiian fashion.

“Hopefully,” the Waipahu native said, “everyone will see my hula dance at the end.”

The weigh-in takes place today at the Millennium Biltmore Hotel in Los Angeles.