Salvo, North Carolina — Travis Tygart, CEO of the US Anti-Doping Agency (Usada), says there is a simple workaround to a potential integrity issue with new doping sample collection bottles, and that no changes are needed for February’s Winter Olympics. The World Anti-Doping Agency (Wada) said on Sunday the new-generation bottles, introduced after the 2014 Sochi Olympics doping scandal, were being looked at after the accredited laboratory in Cologne said it had discovered they might potentially be susceptible to manual opening "upon freezing". The International Olympic Committee (IOC) said on Monday that it was very concerned about the issue but Tygart said Usada did not believe there were any changes that were absolutely necessary. "I think the simple solution for the Games is that they just don’t freeze any of the samples until the full analysis is completed," Tygart said in a telephone interview. "Based on what we understand that will cure this problem." The bottles are used to col...

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