Olympic 100m hurdles champion Brianna McNeal has been provisionally suspended for doping violations, the Athletics Integrity Unit (AIU) announced Thursday.
The 29-year-old American, who claimed Olympic gold in Rio de Janeiro in 2016 and also won world gold in Moscow in 2013, was charged with “tampering” with part of a doping control, the AIU said.
McNeal, who won Olympic and world golds while running under her maiden name of Rollins, is the owner of the joint fourth-fastest run in 100m hurdles history, having clocked 12.26 seconds in Des Moines in 2013.
But she now faces the prospect of missing the rescheduled Tokyo Games later this year.
McNeal was previously handed a one-year suspension by the US Anti-Doping Agency (USADA) for failing to properly file whereabouts information for out-of-competition testing three times in 2016.
The date of her third and last missed whereabouts report was September 27, just five weeks after her success in Rio.