NEW YORK: American boxer Ryan Martin has been suspended for four years by UK Anti-Doping (UKAD) on Wednesday after testing positive for prohibited substances last year. Martin tested positive for the presence of androsterone and etiocholanone, which are metabolites of testosterone, following an in-competition test after his match against Josh Taylor in Glasgow on Nov. 3, 2018. As the fight occurred under the auspices of the British Boxing Board of Control, the 26-year-old was subject to the national body’s anti-doping regulations. Martin was charged with an Anti-Doping Rule Violation (ADRV) as a result of the positive test. “Androsterone and etiocholanone are listed under section S1.1(b) of the WADA 2018 prohibited list as ‘endogenous anabolic androgenic steroids (list of metabolites and isomers) when administered exogenously’,” UKAD said in a statement. “Exogenous testosterone, androsterone and etiocholanone are all non-specified substances prohibited at all times.” UKAD said Martin’s ban would run until midnight on Nov. 2, 2022 and the boxer has the right to appeal the decision.