Brian Viloria knows he doesn’t have much time to waste. But in this case, the 31-year-old had to make an exception.

After it was pushed back twice, the trilogy fight between Viloria and Omar Nino Romero takes place Sunday morning in the Philippines at the Ynares Sports Arena.

The bout, which is for Viloria’s WBO flyweight title, will be available on pay-per-view in Hawaii on Saturday at 3 p.m.

Viloria (30-3, 17 KOs) could have opted for another fight after a licensing issue with the Nevada State Athletic Commission forced Romero (31-4-2, 13 KOs) to move the bout back. Instead, Viloria stayed in the gym and patiently waited for things to work out, keeping a shot at avenging the first professional loss of his career.

"It’s a trilogy, something that I wanted, something that I felt like was unfinished business," he said last week. "I’m kind of happy to be given the chance to prove myself and prove to everybody that the first couple of fights was not me."

The longtime Waipahu native was an undefeated WBC light flyweight champion when Romero won a unanimous decision in Las Vegas in August 2006. The two fought again three months later to a draw, but Romero failed a post-fight drug test, which changed the decision to a no contest.

Since then, Viloria has won two world titles in different weight classes, holding the IBF light flyweight title for nine months in

2009-10 before winning the WBO flyweight belt with a unanimous decision over Julio Cesar Miranda at the Blaisdell Arena last July. He successfully defended the title with a dominant TKO of Giovani Segura, ranked No. 9 pound-for-pound by Ring Magazine at the time, back in December.

Five months later, Viloria hopes to show the same form against Romero.

"It’s going to be an exciting fight," Viloria said. "I’m excited and want to just perform to the best of my abilities."

When the fight was first put together in February, Viloria said Romero was tops on the list of guys he wanted to fight.

"I want to kind of wipe this out of my subconsciousness," Viloria said then. "This is something I’ve wanted for years."

Romero didn’t fight for 19 months after the failed drug test following the second Viloria fight, and he is 6-2-1 since. He hasn’t fought at 112 pounds once during that span. The first two fights against Viloria were contested at light flyweight (108 pounds). The fight is available via iN Demand, DIRECTV and DISH Network PPV or online at Ustream.tv.