By Mark Vester

Juan Manuel Marquez is in the middle of his final preparations for his lightweight debut against Joel Casamayor on September 13 at the MGM Grand in Las Vegas. Marquez took such a tough fight for his first fight at 135-pounds to set up a third meeting with Filipino rival Manny Pacquiao in 2009. Marquez says that the entire world knows that he already beat Pacquiao twice and was robbed on the scorecards.

Marquez's promoter, Oscar De La Hoya, will face Pacquiao at 147-pounds on December 6, also at the MGM Grand in Las Vegas. De La Hoya calls it a fight to avenge all of the Mexican fighters that Pacquiao beat. Marquez doesn't put himself in the category of the fighters that De La Hoya plans to avenge. Marquez feels that he should of have been credited with two wins over the Filipino sensation.

"In reality, I should have two victories on my record over Pacquiao," Marquez told ESTO.

Marquez has a tough task ahead with Casamayor. He is not overlooking the fight and predicts a tough battle.

"I'm putting my career on the line in this fight. I have to win this fight because a loss would throw away everything I've done over the course of my career." Marquez said. "Casamayor is one of the better boxers around at the present time, but I believe that I have the weapons to beat him. I know that I am going against one of the best fighters in the world, a fighter who dominates with his defensive style of boxing and he is very elusive."

"His style doesn't worry me because it's not the first time I'm in front of an opponent with his characteristics. There were others who were evasive, like Molina and Gainer and other others, and they were not a big problem because I beat them. I am not going to fall for the plan of Casamayor and chase him all over the ring. I am going to cut off the ring every time and people are going to see a great fight."

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