Juan Manuel Marquez looking to knock out Manny Pacquiao

Juan Manuel Marquez has admitted that he is looking to knock out Manny Pacquiao when the pair square off next month.

The two fighters will clash for a fourth time on December 8, and the Mexican has said that he will be trying to claim a KO victory.

"I know that I have to decisively outfight him and the best way to do that is to knock him out," said Marquez.

"I am going to be aggressive in this fight. I won't go for the knockout right out away but if I get the opportunity for the knockout, I will go for one.

"I will fight with aggression but also intelligence."

The fight will take place at the MGM Grand in Las Vegas.