Nigerian sprinter Blessing Okagbari has been disqualified from the Olympics after failing a doping test, making her the first case of activation in the track and field events at the Tokyo Games.
The Athletics Integrity Unit said in a statement that Okagbari, who won her group in the women's 100m heats, had tested positive.
The unit said that the test was conducted on the nineteenth of this month, and the runner was notified of its results in advance.
Okagbari, a gold medalist at a Commonwealth Games in the qualifiers, clocked a time of 11.05 seconds.
This exclusion comes after the Integrity Unit announced that ten Nigerian athletes were among the 18 competitors who were banned from participating in the Tokyo Games after failing doping tests before the start of the competitions.