Timothy Bradley vowed that fans will see a different fighter in his upcoming rematch with Manny Pacquiao on April 12 at the MGM Grand in Las Vegas.

Bradley, who scored a controversial split-decision win over Pacquiao in their first showdown in June 2012, said he is determined to get the credit that he deserves, promising to prove that his first victory over the then-pound-for-pound king was not a fluke.

"I didn't get any credit for the first win. No one expected me to get the win. No one felt I won the fight," Bradley told BoxingScene. "April 12, I'm going to prove to fans around the world and all the people around the world watching that it wasn't a fluke the first time. I'm on a quest, man."

The undefeated American, who will put his WBO welterweight title on the line, said that he will fight using a different style in their upcoming rematch.

Bradley pointed out that his movements during their first showdown were limited because he was slowed down by a foot injury he sustained during the second round of that bout.

The 30-year-old American is looking forward to having the same intensity that he had when he defeated Juan Manuel Marquez in October last year.

"Well the first time around, from the second round on, I was damaged goods," Bradley stressed. "I didn't have my feet underneath me like I did in the Marquez fight. In the Marquez fight, I was able to show a lot of versatile things. I boxed, came forward a little bit, moved, counterpunched. I did it all in the ring, and I didn't have that ability to do that in the first Manny fight."

Bradley also admitted that his nerves got the best of him in their first showdown, but he vowed to be more relaxed in his next fight, saying that his last two fights—against Ruslan Provodnikov and Marquez—helped him a lot in dealing with the pressure of headlining a pay-per-view fight card.

"My nerves in the first fight with Manny Pacquiao were unbelievable," Bradley said. "I had nerves and anxiety, and that can alter your game a little bit. So this time around, man, I'll be a lot more relaxed. And the more relaxed you are, the better fight you'll have."