When Kohei Uchimura heard he¡¯d tested positive for COVID-19, the three-time Olympic gold medalist was shocked.

¡°When I was first told I was positive, I didn¡¯t believe it at all,¡± he said, recalling his initial reaction to the result of a PCR test from Oct. 28 during a news conference on Saturday, one day before Tokyo hosts a four-nation gymnastics competition at Yoyogi National Gymnasium.

Uchimura¡¯s initial disbelief was proven to be right in the long run. He didn¡¯t have the virus. Subsequent testing, including of his original sample, revealed his first test was a false positive.