By mid-May ‘03, the ATP had stopped distributing electrolyte replacements. News of this was widely disseminated in the press, and notices were posted in player locker rooms. More than two months later, however, Greg Rusedski tested positive. Invoking the same defense as previous players, he claimed that the ATP, not he, was responsible. Though there was still no proof that the electrolytes had been contaminated or that Rusedski had ever taken them, and no explanation of how Rusedski had been tainted by supplements that had already been removed from the locker room, the tribunal decreed that his case too deserved to be dismissed.
Dick Pound, head of the World Anti-Doping Agency, called the decision “preposterous…It defies imagination.”
A number of nandrolone cases in athletics occurred in 1999, which included high-profile athletes such as Merlene Ottey , Dieter Baumann and Linford Christie .  However, the following year the detection method for nandrolone at the time was proved to be faulty. Mark Richardson , a British Olympic relay runner who tested positive for the substance, gave a significant amount of urine samples in a controlled environment and delivered a positive test for the drug, demonstrating that false positives could occur, which led to an overhaul of his competitive ban. 
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