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

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.

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