Canelo Alvarez says he might fight Mayweather in May

Floyd Mayweather is expected

back in the ring in May, and it could be a battle of unbeatens.

Mayweather's opponent could be Mexican superstar Saul "Canelo" Alvarez — at least according to Alvarez. And it would likely take place on Cinco de Mayo weekend.

Alvarez, 22, made an announcement on his Facebook page Thursday saying, "Our next fight is scheduled to take place on May 4, we are close to finalizing the Mayweather fight."

Alvarez (41-0-1, 30 KOs) fights for Golden Boy Promotions, which has also contracted to handle Mayweather's recent fights. Mayweather vs. Alvarez would undeoubtedly be the biggest money fight in boxing, a mega-bucks pay-per-view event that would likely bring in a huge Mexican audience.

Phone calls to Golden Boy CEO Richard Schaefer were not immediately returned.

Mayweather (43-0, 26 KOs) has not fought since May 5, when he defeated Miguel Cotto by unanimous decision to take Cotto's 154-pound belt.

A month later Mayweather went to jail and served a little more than two months of a three-month sentence for domestic assault.

He also went through a highly publicized business and personal split a few months ago with longtime friend, hip hop star and entrepreneur, and now boxing promoter, 50 Cent.

Mayweather will turn 36 in February. The world's top pound-for-pound fighter tweeted Thursday that he could get back together with his father, Floyd Mayweather Sr. The two have been estranged for more than a year.

You can see Mayweather on the basketball court much sooner — Sunday to be exact, if you're in Los Angeles. He is putting on a basketball game for charity. Professional Athlete Advisors, LLC will work with Mayweather Promotions in the 8th Annual Watson Christmas Charity/Celebrity Basketball Game.

Joining him at Westchester High School (7400 W. Manchester Ave.) will be two other unbeaten boxers, Adrien Broner and Danny Garcia. Admission is $10, or $5 with a new toy donation. Doors open at 3 p.m. PT.