Pacquiao, Mayweather camps mum after mediation hearing on megafight

Representatives for Manny Pacquiao and Floyd Mayweather Jr. wrapped up a lengthy mediation session Tuesday night with no word on any progress on the drug-testing issues endangering the boxers' prospective March 13 bout. Pacquiao promoter Bob Arum and Mayweather's promotional team all said they had been told to make no public comments after their meeting in Santa Monica. The mediation finished nearly nine hours after it began in front of Daniel Weinstein, a retired federal judge. Arum's Top Rank and Mayweather's representatives at Golden Boy Promotions agreed to the mediation in an effort to resolve their dispute over the methods and frequency of drug testing for the bout, which will be held at the MGM Grand Garden in Las Vegas if a compromise is reached. Although both fighters have agreed to extensive urine testing, Mayweather has demanded random blood testing as well. Pacquiao has balked at unlimited blood testing, instead proposing two blood tests before the fight and another immediately afterward. Pacquiao also complicated the negotiations by filing a lawsuit last week alleging Mayweather and most of his camp's key players defamed him by falsely accusing him of using performance-enhancing drugs.