By Keith Idec

Canelo Alvarez doesn’t anticipate anything different from Gennady Golovkin when they square off again next month.

Golovkin’s rival claims that the unbeaten middleweight champion is too old to have learned anything new from his trainer, Abel Sanchez, since they battled to a dubious draw 11 months ago. That’s one of the reasons Alvarez is convinced he’ll win their 12-round rematch September 15 at T-Mobile Arena in Las Vegas (HBO Pay-Per-View).

The former two-division champion from Mexico is confident, too, that he’ll be able to perform better than he did during their first fight last September 16 at T-Mobile Arena. That’s because Alvarez feels he is a more diverse, complete fighter than Golovkin.

Eddy Reynoso, Alvarez’s co-trainer, again called Golovkin “a very basic” boxer Sunday before their open workouts in Los Angeles. Rust isn’t a disadvantage, either, according to Alvarez, even though he hasn’t fought since facing Golovkin nearly a year ago.

Alvarez (49-1-2, 34 KOs) looks at it like they’ll end essentially the same lengthy layoff when they fight again two weeks from Saturday night. He doesn’t consider Golovkin’s second-round demolition of Vanes Martirosyan on May 5 a fight that could’ve constructively helped Golovkin (38-0-1, 34 KOs) remain sharp for their rematch.

“He hasn’t learned anything, since he hasn’t fought in a year,” Alvarez said through a translator Sunday. “We’re actually in the same place right now because him fighting against a heavy bag, like he did last time, isn’t considered a fight. And at 35 years of age, there’s nothing really you can teach this guy. What they have taught him is to run his mouth.”

Alvarez, 28, referred to Golovkin’s consistent criticism since Alvarez twice tested positive for clenbuterol in February. The WBA/WBC/IBO 160-pound champion called Alvarez “a liar” on Sunday and contended that his polarizing opponent has “no respect whatsoever” for boxing or its fans.

The aforementioned failed tests and Alvarez’s subsequent six-month suspension caused the cancelation of their rematch May 5, when Golovkin instead dismantled Martirosyan, an inactive junior middleweight contender, at StubHub Center in Carson, California. The 36-year-old Golovkin obviously is preparing for a much harder fight versus Alvarez.

“He knows who I am,” Alvarez said. “Even better, he doesn’t know what I still have left to show. More than anything, I’m anxious to demonstrate what’s left to show in the ring in the rematch.”

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.