But when Roger was released, the situation became awkward because of the brothers’ rivalry. He also spent five years in a federal prison for convictions for violating drug trafficking laws. Floyd Jr. chose Roger as his trainer and Floyd Sr. left again, claiming that the father-son relationship was "back to square one" for choosing Roger over his own father again. Floyd Sr. agreed to once again train De La Hoya in anticipation for Mayweather Jr. – De La Hoya II presented by Golden Boy Promotions. However, due to disagreements with how revenues would be divided amongst the two fighters, the bout was cancelled. Mayweather Sr. trained Manchester's Ricky Hatton for seven weeks prior to his bout against Paulie Malignaggi on November 22, 2008 at the MGM Grand in Las Vegas. Hatton retained his IBO light welterweight title with a technical knockout in the 11th round. However, Hatton lost only his second fight under Mayweather Sr. with a second-round knockout by Manny Pacquiao. The famous feud between Floyd Mayweather Sr. and Floyd Mayweather Jr. finally came to an end as father and son made up before Jr.'s return to the ring after a 21-month lay off. However Jr.'s uncle Roger Mayweather still trained Jr. On the HBO 24/7 program Floyd Mayweather Sr. was quoted as saying 'I don't need to train my son, I need a relationship with my son." A proposed March 2010 fight between Mayweather Jr. and Manny Pacquiao fell by the wayside in January 2010 when the camps representing both fighters could not agree on a timeline for drug testing for the fight. A more stringent drug test was sought by Mayweather Jr.'s representatives due to inadequacies in the current testing standards and a suspicion that Pacquiao might be utilizing banned performance enhancers in his training regimen. Mayweather Sr. had been very vocal about his theory that Manny Pacquiao's impressive displays as a welterweight were aided by performance-enhancing drugs for several months prior to the negotiation for a fight between his son and Pacquiao. On March 21, 2011, U.S. District Judge Larry Hicks said Pacquiao had sufficient evidence to continue his lawsuit that alleged Floyd Sr., Floyd Jr., and Roger acted with malice by accusing the Filipino boxer, and as of December 2011 Jr had been deposed and the case was continuing seeking damages of $10 million. Mayweather trained UFC fighter BJ Penn for two weeks. In May 2013, for the first time in 13 years, Floyd Jr. announced that Floyd Sr. would return as his trainer against Robert Guerrero.