Taiwan's Wu Shih Yi was handed a walkover in her lightweight round-of-16 bout on Monday after Nigerian opponent Cynthia Ogunsemilore was provisionally suspended following positive test for a banned substance.
On Saturday, Commonwealth Games bronze medallist and African Games champion Ogunsemilore tested positive for furosemide, a diuretic on Wada's prohibited list, in an out-of-competition doping control collected on Thursday.
In the quarterfinals, Wu will next meet either Australia's Tyla McDonald or Maria Jose Palacios of Ecuador, who face off later on Monday.
