Jason Day has withdrawn from this week's World Golf Championship event in Mexico with illness.
The Australian, who recently lost his world No. 1 ranking to American Dustin Johnson, has an ear infection and flu.
He has just resumed playing tournament golf after missing the latter part of the 2016 season with a back issue.
"I'm truly disappointed to announce that I won't be able to play in next week's World Golf Championship-Mexico Championship," Day said.
"I have a double ear infection and the flu, which precludes me from preparing for and playing in the tournament. I have heard great things about the Mexico Championship and the golf course and I look forward to teeing it up there next year."