California State University Fullerton Professor and competitive cyclist John Gleaves has been banned for numerous anti-doping violations by the United States Anti Doping Agency (USADA).

Gleaves is recognized expert in sports doping, specifically cycling doping, and is a member of the World Anti-Doping Agency’s Working Group on Doping Prevalence, USA Cycling’s Anti-Doping Advisory Board and author of Doping in Cycling: Interdisciplinary Perspectives.

He was hired as an expert doping witness by Lance Armstrong’s legal team in 2015 to testify on widespread doping in professional cycling.

According to USADA, the 37-year amateur cyclist tested positive for multiple banned substances, oxandrolone and clomiphene, at the USA Amateur Track National Championships on 31 August 2019. These substances are on the World Anti Doping Agency banned substance list and prohibited at all times.

Oxandrolone is anabolic steroid known to get rid of fat while increasing muscle mass. Clomiphene is used to treat infertility in women, but nefarious male athletes use it to trick the body into producing testosterone.

USADA found Gleaves guilty of doping and issued a 4-year ban, ending 31 August 2023, prohibiting him from participating in sport at any level.