Mark Otieno: It has not been easy after doping claim

Mark Otieno, 100m sprinter (left) and Stephanie Odhiambo 100m sprinter in Nairobi on Friday, Feb 28, 2020. [Jonah Onyango, Standard]

Former 100m national record holder Mark Otieno has blamed his anti-doping violation positive test result on a contaminated nutritional supplement as he spoke for the first time after being ejected out of 2020 Tokyo Olympics.

The sprinter is also hoping the Athletics Integrity Unit (AIU) will be fair to him when they give their verdict on whether he will serve the standard four-year ban or not.