Las Vegas, NV (My Sportsbook) - Undefeated "Pretty Boy" Mayweather appears ready to get back in the ring.

According to multiple reports, Floyd Mayweather Jr. will announce Saturday that he's coming out of retirement to fight lightweight champion Juan Manuel Marquez on July 18. Golden Boy Promotions has called a press conference for 3 p.m. (et) at the MGM Grand in Las Vegas, apparently to make the announcement.

The 32-year-old Mayweather (39-0, 25 KOs), known as one of the best pound-for- pound fighters in the world, announced his retirement last June saying "these past few years have been extremely difficult for me to find the desire and joy to continue in the sport."

"Pretty Boy" hinted at retirement after his career-defining split-decision victory over Oscar De La Hoya in May of 2007, but the Las Vegas native came back seven months later to pummel previously unbeaten Ricky Hatton in a 10th- round TKO.

Mayweather was scheduled to face De La Hoya in a much-anticipated rematch last September but passed on the guaranteed big payday. Mayweather made headlines outside of the boxing ring over the past year with appearances in ABC's "Dancing with the Stars" and a showcase bout in WWE's famed "Wrestlemania."

There's a chance if Mayweather wins his fight he could face the winner of this Saturday's blockbuster fight between Hatton and Manny Pacquiao.

The dynamic Mayweather won championships in five different weight divisions, including super featherweight, lightweight, junior welterweight and junior middleweight. He also won the 1996 Olympic bronze medal in Atlanta.

The 35-year-old Manuel Marquez (50-4-1, 37 KOs) is the current WBA and WBO lightweight champion. He's also held featherweight and super featherweight titles and is the fourth Mexican boxer to become a world champion in three different weight classes, joining Marco Antonio Barrera, rik Morales, and Julio Cesar Chavez.