UCI announces that Dutch rider Antwan Tolhoek has tested positive for steroids

The International Cycling Union (UCI) has officially announced that Dutch cyclist Antwan Tolhoek has been notified of an Adverse Analytical Finding for the detection of Anabolic Androgenic Steroids (AAS)* in a sample collected during an out-of-competition doping control conducted on November 27, 2023.

The doping control process was initiated and executed by the International Testing Agency (ITA) on behalf of the UCI, in compliance with established protocols and regulations.

In accordance with UCI anti-doping regulations, Tolhoek has been subject to a provisional suspension, while simultaneously being granted the right to request analysis of the B sample to confirm or refute the initial results.

While disciplinary proceedings are ongoing, the UCI has stated its decision to refrain from further comment on this matter.