The Athletics Integrity Unit (AIU) has banned Kenyan athlete Emmanuel Kipchumba Kemboi for two years after finding him guilty of using banned substances.
AIU has also stripped him of all his performances since October last year.
Through a statement, AIU revealed that Kemboi was banned for two years for using triamcinolone acetonide - a potent synthetic corticosteroid used to treat a variety of skin conditions, inflammatory diseases, and allergic reactions - despite winning a marathon race just over two months ago. "The AIU has banned Emmanuel Kipchumba Kemboi (Kenya) for 2 years from April 7, 2025, for the presence/use of a prohibited substance (triamcinolone acetonide)," the AIU stated.
Kemboi's ban came about after a urine sample submitted after the Lisbon Marathon in 2024 found an adverse analytical finding in the sample based on the presence of triamcinolone acetonide.