Boxing-Mayweather denies doping violation before Pacquiao bout (Reuters)
By Mark Lamport-Stokes LAS VEGAS, Sept 10 (Reuters) – The build-up to Saturday’s welterweight fight between Floyd Mayweather Jr. and Andre Berto has been rocked by suggestions of a doping violation four months ago, an allegation flatly denied by Mayweather on Thursday. According to a report by SB Nation, Mayweather allegedly received an intravenous injection of saline and vitamins, that was banned under World Anti-Doping Agency guidelines, on the eve of his megabout with Manny Pacquiao in Las Vegas on May 2.