INDIANAPOLIS (Ticker) -- Shane Mosley waited 10 years to avenge a loss. After failing to do that, he has even more to prove on Saturday night when he faces unbeaten WBC welterweight champion Vernon Forrest at Conseco Fieldhouse.

Mosley (38-1, 35 KOs) had established himself as one of the best pound-for-pound fighters in the world when he met Forrest for the first time as a professional on January 26. At that time, many people did not even remember that Forrest (34-0, 26 KOs) defeated Mosley in the 1992 United States Olympic Trials.

But in the second round at New York's Madison Square Garden, Forrest stunned Mosley and most fans with a pair of knockdowns. From that point on, he dominated en route to a unanimous decision to capture the belt that Mosley had won from Oscar de la Hoya in June 2000.

"Yeah, it did kind of surprise me," said Mosley about the way Forrest controlled the fight in January. "You know, he beat me and you know we're going to do something better for the next fight."

What Mosley needs to do better is find a way to neutralize the jab of the 6-foot Forrest. While Mosley was hurt from a head butt that he felt was not accidental, he also had trouble dealing with Forrest's size advantage.

"I didn't underestimate him," Mosley said. "I think that he had a good strategy, I was too quick for him and I moved too well and he dove in with his head and disoriented me and then after that, he held off. But after he found out that he couldn't knock me out, then he started holding the whole fight to secure his victory."

While Forrest did not record a knockout, he did continually attack Mosley and did enough to enter as the favorite for the rematch. Forrest also dropped Mosley for a third time in the 10th round, when he connected with a powerful right cross that dislodged the former champion's mouthpiece.

Forrest had an August 2000 fight against Raul Frank ruled no contest after an accidental head butt in the third round. In the rematch last May, Forrest scored a convincing decision to capture the IBF welterweight title. He then registered a fourth-round technical knockout over Edgar Ruiz last August before defeating Mosley.

Also on Saturday, Eric Harding (21-1-1, 7 KOs) takes on Antonio Tarver (19-1, 16 KOs) in a light heavyweight bout. Harding handed Tarver his first defeat in June 2000 before suffering a 10th-round technical knockout against undisputed champion Roy Jones Jr. Tarver has won two fights since the loss and is a possible opponent for Jones.

The bouts will be televised by HBO, beginning at 9:30 p.m. EDT.