Former Masters Champion Adam Scott last participated in the US Open in September
Former world number one Adam Scott has withdrawn from this week's Zozo Championship in California after testing positive for coronavirus.
The PGA Tour confirmed on Wednesday that the 40-year-old Australian will not be playing at Sherwood Country Club.
Scott said his "focus now is on recovery" for the remainder of the season.
In a statement, the PGA Tour said Scott "will have the full support of the PGA Tour throughout its period of self-isolation under CDC guidelines".
American Phil Mickelson plays in California, but says he is considering missing next month's Houston Open, where a limited number of fans are allowed in.
"For me personally, I don't like the risk of that happening the week before the Masters," said Mickelson.
"I just don't want to take any chances of going there. It has made me doubt whether or not I'll play there.
"But I have to give the Tour a lot of credit and confidence in the way they have handled throughout the year and I am sure they will do a great job of keeping the players safe in that environment. "