BIG BEAR, Calif. -- Oscar De La Hoya hurt his left hand sparring while training for his Sept. 13 fight against Shane Mosley, but he said the injury won't jeopardize the defense of his WBC and WBA super welterweight titles.

"I have trained too hard to postpone the fight," he said Wednesday at his camp in the mountains east of Los Angeles. "The only one who can postpone the fight is me, and I'm not going to postpone it."

De La Hoya and Mosley will fight for the 154-pound titles at the MGM Grand in Las Vegas. De La Hoya lost his 147-pound WBC welterweight title by a split decision to Mosley in 2000 in Los Angeles.

Top Rank president Bob Arum said he was not concerned that the fight would be postponed.

"It is being taken care of," Arum said. "He'll be fine. It happened before. Every day it gets better. It's not broken. There's no swelling at all."

De La Hoya said he has not sparred since last Friday when the injury occurred while he was wearing a soft brace.

But he has continued the rest of his training routine, including running, chopping wood, shadow boxing and hitting the heavy bag and speed bag with his right hand.

He had surgery on his left hand two years ago to remove cartilage and repair torn ligaments, but his hand has been tender for years.

"It doesn't go away," he said. "It's frustrating."

De La Hoya conceded the hand injury would affect the length of his career.

"I'm very positive it will cut it short," he said.