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2017 Tour de France samples re-tested for unnamed substance - report

FILE PHOTO: - The 104th Tour de France cycling race - The 103-km Stage 21 from Montgeron to Paris Champs-Elysees, France - July 23, 2017 - The peloton passes through the Grand Palais. Picture taken July 23, 2017. REUTERS/Charles Platiau

(Reuters) - Samples from the 2017 Tour de France are being re-tested as authorities look for a previously undetectable performance-enhancing substance, Belgian newspaper Het Nieuwsblad reported on Saturday.

“On the basis of additional information... we have identified the relevant samples and carried out the first analyses,” a spokesperson for the Cycling Anti-Doping Foundation (CADF) was quoted as saying by Het Nieuwsblad.

The newspaper reported that the re-testing operation is part of an inquiry into the Aderlass doping affair, which first came to light when Austrian police raided the Nordic skiing world championships in 2019.

Eight professional riders have since been implicated in that scandal.

Last November, the International Cycling Union (UCI) said it had asked the CADF to analyze samples from the 2016 and 2017 seasons amid the Aderlass affair.

UCI officials were not immediately reachable for comment on Saturday.

Reporting by Julien Pretot; Editing by Hugh Lawson