By Carlos Boogs

Abel Sanchez, trainer of IBO/WBC/WBA/IBF middleweight champion Gennady 'GGG' Golovkin (35-0, 32KOs), still feels that five division world champion Floyd Mayweather Jr. (49-0, 26KOs) is the only boxer - between 147 to 160 - that would push his fighter to the limit.

Mayweather retired from the sport last September after winning a twelve round unanimous decision over Andre Berto at the MGM Grand in Las Vegas.

There are rumors of a Mayweather comeback in very near future and the unbeaten boxer continues to drop hints of a probable return.

Golovkin says a bout with Mayweather is his "dream fight." Mayweather is the only boxer that he would be willing to face at a catch-weight of 154-pounds, where Floyd previously held the WBC/WBA world titles.

Golovkin is scheduled to fight again on September 10th at the O2 Arena in London, when he defends his titles against current IBF welterweight champion Kell Brook - who moves up in weight by thirteen pounds to take on the challenge.

"I think Floyd could be 60 years old and he would still be the same [if he returned]. I think Floyd's probably the only one, and I'm not trying to sell the fight and I've said it all along - I think Floyd's probably the only one that's got the tools to give Golovkin that fight that you guys are looking for in those weights," Sanchez said.