By Jhonny Gonzalez

WBC middleweight champion Sergio Martinez has a goal to become the undisputed pound for pound king of boxing. To accomplish this, he must defeat one of the two boxers ahead of him in the pound for pound rankings, Floyd Mayweather Jr. and Manny Pacquiao. He says a fight with Pacquiao is impossible because of the Filipino's demands on the weight. Regarding a fight with Mayweather, Martinez thinks the clash is possible for the end of 2011.

"I'm ranked number two in the pound for pound, behind Pacquiao and ahead of Mayweather. My goal is to be number one and that has been my dream since I was an amateur. I have to box against one of them. With Pacquiao it will be difficult because he is so much smaller. He wants me to go under 154-pounds and for me that is impossible. With Mayweather, I believe that we can reach an agreement by the end of 2011 and I would love to fight him for the sport, and the purse, which I reckon would be around $15 million from the pay-per-view," Martinez said.