MGM Grand, Las Vegas - Ryan Burton catches up with Ruben Guerrero, father and trainer of Robert 'The Ghost' Guerrero, to get his thoughts on the upcoming fight between Floyd Mayweather Jr. and Manny Pacquiao, reflecting back on Robert's fight with Mayweather and some of the critics who attacked the fight on both ends, some of the tactics that Robert could use against any opponent, including tonight's fight with Keith Thurman and how they trained differently for the fight with Mayweather, training to go against fighters who plan to use their legs and move, and more.