Ryan Burton catches up with trainers Yoel Judah and Ruben Guerrero, as they discuss the escalating feud between Ruben and Floyd Mayweather Sr. All three trainers are taking part in the new boxing reality show "Knockout." Ruben and Floyd Sr. have nearly come blows on two occasions in the last six days. Their feud stems back to the pre-fight build connected to the clash between their sons last May at the MGM Grand in Las Vegas.