Four-time major winner Brooks Koepka has withdrawn from The Players Championship due to a knee injury.
Koepka has struggled with injury problems over the last year and a half and the American has suffered another setback a month before The Masters gets under way at Augusta.
The 30-year-old will not be among the field when The Players Championship gets under way at TPC Sawgrass on Thursday due to a strained right knee.
Blake Smith, Koepka's manager, said: "Brooks strained his right knee and he is scheduled to further consult with doctors this week to receive a more extensive evaluation and outlook.
"We will be able to provide additional updates and information as we learn more."
Koepka is eighth in the FedExCup standings and claimed his eighth PGA Tour title by winning the Waste Management Phoenix Open in February.
He was tied for second when he last teed off on the PGA Tour at the World Golf Championships-Workday Championship at The Concession at the end of last month.