Koepka has not played since finishing last in the Sentry Tournament of Champions in the first week of January, after which he was diagnosed with a partially torn tendon in his left wrist.

Asked by USA Today if he would be able to play in the year's first major championship at Augusta National, the 27-year-old said: "They said I would be about 80 per cent, but I can't play 80 percent.

"I either have to go full bore or not at all. I don't want to risk getting it re-injured and then be out a long time."

Koepka, who was 11th in the Masters last year, won the 2017 US Open by four shots at Erin Hills for his first major title.