Robert Guerrero's Father Calls Floyd Mayweather Jr. A 'Woman Beater' During Press Conference (VIDEO)

The upcoming welterweight title fight between Floyd Mayweather Jr. (43-0) and Robert Guerrero (31-1-1) has expanded into an all-out family feud. Both fighters are trained by their fathers and a multi-generational brawl almost broke out during a pre-fight press conference at MGM Grand's Hollywood Theatre on Wednesday.

In a profane rant, Guerrero's father, Ruben, repeatedly called Mayweather Jr. a "woman beater" in reference to his 2011 conviction on misdemeanor domestic violence and harassment charges and said "he must have learned it from his dad." In December 2011, Mayweather Jr. pleaded guilty to domestic battery charges after an attack on his ex-girlfriend in 2010, avoiding a trial and felony charges. He was jailed in June 2012 and served two months of a three-month sentence before being released in August 2012. Guerrero is Mayweather Jr.'s first opponent since his release.

“We’re going to beat up that woman beater, the one that beat up his wife, man. His wife in front of his kids. You guys like that shit? You like this guy, woman beater?," the elder Guerrero shouted from the podium. "He must have learned it from his dad. Women beaters, baby. We’re going to beat that woman beater. We’ll see how he’s going to like it. He’s going to get it from a real man. Damn women beaters. We’re going to beat that woman beater down.”

WARNING: VIDEO BELOW CONTAINS NSFW LANGUAGE

Champion prizefighter turned Golden Boy Promotions empresario Oscar De La Hoya stepped to the podium, interrupting the rant. He uncomfortably tried to calm things down, insisting "it's OK" even as Ruben continued to berate the Mayweathers.

True to his nickname "Money," the younger Mayweather's main concern was that nothing happen during the press conference that would jeopardize the bout.

"I'm trying to avoid anyone getting hurt," Floyd Jr. said after the verbal sparring, via Kieran Mulvaney of ESPN. "If I'm up here and my dad and his dad get to fighting, they fall on him or they fall on me, somebody's finger or something gets broke or something happens, somebody gets a cut, you're talking about millions of dollars going down the drain. You have to be smart."