Sources: Canelo Alvarez and Caleb Plant closing in on Sept. 18 bout for undisputed super middleweight title

ByMIKE COPPINGER
July 20, 2021, 2:29 PM

Canelo Alvarez is inching toward his goal of collecting all four titles at 168 pounds.

Alvarez, boxing's biggest star, and Caleb Plant are closing in on a deal for a Sept. 18 bout in Las Vegas -- a PBC on Fox pay-per-view -- that will crown an undisputed super middleweight champion, multiple sources tell ESPN. Canelo, a promotional and network free agent, was offered a one-fight deal with Al Haymon's Premier Boxing Champions that will likely net Alvarez (56-1-2, 38 KOs) a career-high guaranteed payday.

He earned $35 million guaranteed for three fights with DAZN and nearly $40 million for the rematch with Gennadiy Golovkin. Alvarez's past three fights were promoted by Eddie Hearn's Matchroom Sport. The Mexican star is coming off a stoppage win over Billy Joe Saunders in which he fractured the English fighter's orbital bone.

Alvarez is ESPN's No. 1 pound-for-pound boxer (and its No. 1 at 168 pounds). Plant (21-0, 12 KOs), who won his title in January 2019 against Jose Uzcategui, is ESPN's No. 3 super middleweight. The undefeated 29-year-old lives and trains in Las Vegas. He scored a unanimous decision victory over Caleb Truax in January, the third defense of his title.

Alvarez, 31, hasn't fought on PPV since the aforementioned return bout with GGG in September 2018.