LOS ANGELES -- Erik Morales of Mexico retained his WBC featherweight title Saturday night with a unanimous 12-round decision over Injin Chi of South Korea.

The fight at Staples Center was on the undercard of Roy Jones Jr.'s world light heavyweight championship title defense against undefeated Julio Gonzalez.

There were no knockdowns, but Morales and Chi landed damaging blows throughout, and after the final bell, both raised their arms in triumph.

Morales, who weighed the 126-pound limit, raised his record to 41-0 with 31 knockouts, and his record in title fights to 13-0.

Chi, 125½, is 24-2 with 14 knockouts.

The judges ruled in favor of Morales 117-110, 116-111, and 116-112. He was aided by two points deducted from Chi by referee Jose Cobian -- in the sixth round for a head butt, and in the 10th for holding Morales while punching him.

"Obviously, he can take a punch, because I hit him with some great shots," the 24-year-old Morales said through an interpreter. "After that head butt, I just couldn't go after him, because he was very dirty.

"He was throwing elbows. If I would have gone for the knockout, he probably would have head-butted me again."

Morales' left eye was totally closed at the end of the bout.

"I deserve to fight him one more time," the 28-year-old Chi said through an interpreter after the decision was announced.

The night's first title bout was declared a no-contest seven seconds into the second round when WBA welterweight champion Andrew "Six Heads" Lewis of New York sustained cuts over both eyes when he accidentally butted heads with Ricardo Mayorga of Costa Rica.

"I'm disappointed the fight didn't go longer," said the 30-year-old Lewis, who weighed the 147-pound limit for the 12-round bout. "After I heal, I will give him a rematch."

Lewis remains 21-0-1 with 19 knockouts, and retains his championship.

"It was just a matter of time, I was going to take him out," said the 27-year-old Mayorga, 146½, who remains 22-3-1 with 20 knockouts.

Lewis had cuts on his left eyelid and right eyebrow. Both fighters landed several good shots in an active first round.