By Salvador Rodriguez

Mexico's Marco Antonio Rubio (53-5-1, 46KOs) doesn’t want to leave any doubt when he faces Julio Cesar Chavez Jr. (44-0-1, 31KOs), the middleweight champion of the World Boxing Council, on February 4th at the Alamodome in San Antonio, Texas. Therefore, Rubio is focused on knocking out the son of the best Mexican fighter of all time.

Rubio is training in the mountains of Estado de Mexico in Temoaya, close to the Centro Ceremonial Otomi Ceremonial Center - where Chaver Sr. trained a lot.

"I will go for everything from the moment the bell rings. I want to knock Chavez Jr. out. I don’t want to leave the decisión to the judges and wait for a wrong decisión [to be announced]. I have the power in my fists to to become the next world middleweight champion by defeating Chavez Jr.," Rubio said.

This is the second time that Rubio fights for the middleweight title. In his first attempt, he was knocked out by Kelly Pavlik in the ninth round in September 2009. Since the loss, Rubio has won ten fights in a row and stopped nine of those opponents.