By Rick Reeno

Bob Santos, co-manager of Robert "The Ghost" Guerrero, was laughing at the recent headlines connected with Robert's father and trainer, Ruben Guerrero. According to several published interviews and videos, several members of Floyd Mayweather's team are under the impression that Ruben fought as a pro - and closed his short lived career with an 0-7 record [with six losses by knockout].

There is only one problem with that claim, Ruben never turned pro.

"This is nothing more than a slander campaign to discredit Ruben before the fight. If they have to sink this low to create fantasy stories about Robert's trainer, it only convinces me more that Floyd and his team are worried to death about Saturday night," Santos told BoxingScene.com.

Floyd Mayweather Sr., the father and trainer of Floyd Mayweather, made direct statements to BoxingScene that Ruben had once been a pro fighter with an 0-7 record.

The only proof that Floyd Sr. could provide was a record found on boxrec, which belonged to a fighter named "Ruben Guerrero." However, there are at least three fighters found on boxrec with the name of "Ruben Guerrero."

Ruben laughed at the claims, indicating that he faced certain legal issues when he was much younger - and those factors derailed his pro aspirations. Ruben and Floyd Sr. nearly came to blows at Wednesday's final press conference, before being separated by security.

"I never fought as a professional. I made some wrong decisions in my life and I'm blessed to be here and be with my son. I don't pay attention to these clowns . These Mayweathers are baby nuts brother. They got no heart, no balls, no pride. Your punk father, I gave him first shot and he backed down like a punk. Now he wants to make up records but like lil bitty Floyd says - "men lie, women lie" and only footage I seen was his clown father getting whooped by Sugar Ray Leonard. Clowns, Keep talking about me because you're worried about the wrong Guerrero. My son is going to retire Floyd Mayweather Jr. on Saturday night," Ruben said. 

Mayweather vs. Guerrero takes place on Saturday night at the MGM Grand in Las Vegas. Showtime Pay-Per-View will carry the card.