July 19 (Reuters) - Tobi Amusan, the 100m hurdles world record holder, said on Wednesday she has been charged with missing three doping tests but has denied taking performance enhancing substances and expects to be cleared to compete at the world championships. Under World Athletics Anti-Doping Rules, the applicable sanction for three 'whereabouts' failures is two years' ineligibility, subject to a reduction to a minimum of one year depending on an athlete's degree of fault. She became the first Nigerian world champion and world record holder in an athletics event with her 2022 victory in Eugene, Ore., where she set the world record of 12.12 seconds. Amusan was part of Nigeria's 4x100 relay squad that won gold at the 2022 Commonwealth Games but were then stripped of their medal after anchor runner Grace Nwokocha failed a doping test. The World Athletics Championships run from Aug. 19-27 in Budapest.

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Persons: Amusan, Grace Nwokocha, Lori Ewing, Peter Rutherford Organizations: Athletics, Silesia Diamond League, Diamond League, Thomson Locations: Nigerian, Eugene ,, Budapest