Jon Rahm had to withdraw from the Memorial Tournament during the third round when he held a six-stroke lead.
The PGA Tour issued a statement announcing that Rahm tested positive for COVID-19 on Saturday:
Rahm was at -18 through three rounds, six shots ahead of Collin Morikawa and Patrick Cantlay for the lead with 18 holes remaining.
The PGA statement noted that Rahm has been in contact-tracing protocols since Monday due to having close contact with someone who tested positive for the virus.
After previously testing negative each day, Rahm's test taken on Saturday returned positive. The PGA Tour's medical staff confirmed the positive test this evening, after he had already finished his third round.
The defending champion at this event, Rahm was looking to become the first player since Tiger Woods (1999-2001) to win the Memorial Tournament in consecutive years. The 26-year-old was also looking for his first victory of the 2021 season.
Morikawa and Cantlay moved into a tie for the lead at 12-under par as a result of Rahm withdrawing.