Kenya’s Alex Korio Oloitiptip has been banned for two-years after three whereabouts failures within a 12-month period.
Korio had been provisionally suspended by the Athletics Integrity Unit (AIU) in May over the whereabouts failures.
The suspension of Korio, who ran as a pacer for Eliud Kipchoge when he broke the two-hour marathon barrier last year, marked another blow for Kenyan athletics amid a series of anti-doping rule violations.
The AIU has now confirmed Korio will serve a two-year ban.
The road runner was found to have missed a test on January 20 in 2019, with the second missed test coming on April 11 last year.
Korio’s missed a third test on July 19 in 2019.