By Miguel Rivera

Canelo Alvarez is looking to do some damage when he steps in the ring with IBO, WBA, WBC middleweight champion Gennady Golovkin.

The two boxers are scheduled to collide in a highly anticipated rematch on September 15th at the T-Mobile Arena in Las Vegas.

They met at the same venue a year ago, and their bout ended in a controversial twelve round split draw.

While the two boxers were cordial prior to the first contest, there is a lot of bad blood as the head to the rematch.

Golovkin openly accused Canelo of being a longtime user of performance enhancing drugs -after the Mexican star tested positive for the banned substance clenbuterol back in February.

Canelo was hit with a six month suspension and was forced to withdrew from his original rematch date of May 5th.

Golovkin also criticized Canelo for having an ego. And GGG's head trainer, Abel Sanchez, called Canelo a "runner" and said he was too scared to exchange in the first contest.

"I believe that cordiality we had -- not in the ring -- is over, as they keep opening their mouth," Canelo said to ESPN Deportes. "I don't like to talk too much. ... Obviously, I get mad, but I can control myself when it's time to box. That's why there will be no more cordiality."

"I don't know why they're annoyed, if I'm the one that has made them the most money. They say that is not important, that they are not arguing about it, but it's the first thing they are fighting for: the money, the purse. They only care about that. The hypocrisy is ... saying that is not important is the first hypocrisy.

"It makes me laugh, obviously, saying that will happen when boxing is so unpredictable and so hard. They will not be facing the kind of boxer they have been facing. They know it. They just throw it out there, but they are aware what they will be facing. No doubt this will be a better fight. The desire to tear his head off is so big, and it will be much better."