By Edward Chaykovsky

Trainer Floyd Mayweather Sr. expects his son, WBC welterweight champion Floyd Mayweather Jr., to face mandatory challenger Robert "The Ghost Guerrero on May 4th at the MGM Grand in Las Vegas.

During recent interviews, Floyd Jr. said he was possibly going to work with his father for the May return, because his regular trainer, uncle Roger Mayweather, is having health related issues. Mayweather Sr. says Guerrero beat up former champion Andre Berto - because Berto made the mistake of trying to fight like Floyd Jr.

"I think he'll fight Guerrero next. [Andre] Berto got beat up [by Guerrero] because he didn't know what he was doing. Berto should have fought like he fights, not like how Floyd fights. He needs to fight his game, not Floyd's," Mayweather Sr. told Brad Cooney of 8countnews.com.

He says Floyd will be too smart for Guerrero.

"I think Floyd wins. Little Floyd is too smart for him. Anyway you want to look at it, Floyd is too smart for him," Mayweather Sr. said.

There are people who think Floyd is slowing down after a tougher than expected win over Miguel Cotto in May. Mayweather Sr. says his son was sick and nearly withdrew from the contest.

"Let me say this, I told people that Cotto was going to give Floyd a good fight. I was told that Floyd didn't feel good that night and actually thought about pulling out of that fight. He fought him anyway, and he proved himself again," Mayweather Sr. said.