American sprinter Deajah Stevens, an Olympic 200m finalist, has been banned for 18 months after violating anti-doping rules, the Athletics Integrity Unit (AIU) announced on Thursday.
Stevens, who finished seventh in the 200m in Rio in 2016 and fifth in the London world championships a year later, was found guilty of not meeting 'whereabouts' criteria.
The AIU, World Athletics' anti-doping arm set up in 2017, said Stevens' ban was backdated to 17 February, meaning the 25-year-old will likely miss the rescheduled 23 July to 8 August, 2021 Tokyo Olympics. Stevens can appeal.
Elite athletes are required to tell the AIU their whereabouts 90 days in advance so they can be subjected to out-of-competition doping tests.
Under World Athletics' rules, any combination of three whereabouts failures (filing failure and/or missed test) within a period of 12 months constitutes an anti-doping rule violation, for which the sanction is two years' ineligibility subject to a reduction to a minimum of one year depending on the athlete's degree of fault.