By Adrian Warren

Vic Darchinyan faces one of the biggest opponents and challenges of his career, with a bantamweight world title unification boxing bout against formidable Panamanian Anselmo Moreno in December.

IBO champion Darchinyan (37-3-1, 27 KOs) will fight WBA Super champion Moreno (31-1-1, 11 KOs) in Anaheim, California on December 3.

Anselmo has won 25 straight fights since his only professional loss on points nine years ago.

At 173 cms, he will enjoy a significant height advantage over fellow southpaw Darchinyan.

According to Darchinyan's manager Elias Nassar, Moreno's preparation weight is 67kg [147-pounds], which would qualify him to fight as a welterweight.

Darchinyan isn't daunted by Moreno's physical proportions, pointing out he has beaten bigger men before.

He expects to be in chase mode against Moreno, who he said was a technical fighter, similar in style to Mexican Cristian Mijares, who Darchinyan dismantled three years ago.

"He's a tactical fighter, he loves to move," Darchinyan told AAP of Moreno.

"I think his mind is going to be to win every round, not to knock me out, he's not a good puncher.

"I'm not saying it's going to be easy to beat him or knock him out, it's going to be hard."

The bout will share top billing on the Anaheim card with the IBF bantamweight title rematch between Abner Mares and Joseph Agbeko, two of the three professionals to beat Darchinyan.

Darchinyan would be happy to fight the winner and then move up to super bantamweight for a rematch with Nonito Donaire, the only other boxer to beat him in the professional ranks.

"I'll fight either Mares or Agbeko, whoever wins, I'd love to fight him," Darchinyan said.

"My goal is I want to fight Nonito Donaire, he's moving up to 122 pounds (55.33kg)."

Darchinyan will travel to the United States three weeks before the fight and hopes to do some training at the Hollywood gym of famous trainer Freddie Roach.