Think Major League Baseball’s Mitchell Report in 2007, which named 89 ballplayers suspected of using performance-enhancing drugs. Or the U.S. Anti-Doping Agency’s 2012 report, which finally exposed seven-time Tour de France champion Lance Armstrong as a serial doper, cheater and liar.

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The next naming of names could be shaping up in Europe, where the World Anti-Doping Agency (WADA) has seized control of more than 200 athlete blood/plasma bags at the center of the Operation Puerto doping scandal. WADA is considering whether to release the names of athletes involved, spokesman Ben Nichols told Sporting News.

He did not know if any American athletes were involved.

The athlete samples are now being stored at a WADA-accredited lab. They had been in cold storage since 2006 when Spanish police arrested Dr. Eufemiano Fuentes in Madrid.

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Put on trial seven years later, he was given a one-year suspended sentence. During his trial, Fuentes testified a large number of athletes from a variety of sports were involved. Per The Guardian:

Nichols stressed he’s still not sure if WADA has the authority to name names. “We’re looking at all the possible legal options,” he said.