Mexican superstar Saul 'Canelo' Alvarez has maintained that his upcoming fight with Gennadiy Golovkin is very personal.

They will collide for a third time on September 17 at the T-Mobile Arena in Las Vegas. DAZN Pay-Per-View will carry the event.

Their two prior encounters occurred at the same venue.

In 2017, their first meeting ended in a controversial twelve round split draw.

A year later, Canelo won a close twelve round majority decision to capture the middleweight crown.

While the first two bouts took place at middleweight, Golovkin - who holds the IBF, IBO, WBA titles at 160 - will move up to 168 to challenge Canelo for the undisputed championship at super middleweight.

Over the years, the animosity has grown - because Canelo claims Golovkin is always talking trash about him.

"He's a f---ing assh0le," Canelo said to TMZ Sports. "He's not honest. He pretends to be a good person and be different but he's not."

"He talks a lot of sh!t about me. He'll say, 'I respect him, his career.' And, other part, 'He's an embarrassing boxer, he's embarrassing for Mexican boxing.' I hate that motherf---er because of that."

Canelo is coming off the first loss of his career since 2013.

Back in May, he moved up to the light heavyweight division to challenge WBA world champion Dmitry Bivol.

While Canelo was the big favorite, Bivol outboxed him over twelve to retain the title in a dominant performance. Canelo had the opportunity to exercise an immediate rematch clause but decided to move forward with a planned trilogy against Golovkin. However, Canelo would like to face Bivol in a rematch next year.

"I'm 100% focused on this fight [with Golovkin] because it's a dangerous fight," Canelo said. "But 100% looking for a second fight with Bivol."