Brooks Koepka is unsure if he will play again before the US PGA Championship after missing the cut at the Masters on Friday.

Playing for the first time since February after undergoing knee surgery, Koepka carded rounds of 74 and 75 to miss the cut at Augusta.

After back-to-back top-10 finishes at the Masters, it marked the first time the four-time major winner had failed to reach the weekend at the tournament.

With the US PGA due to start at Kiawah Island on May 20, Koepka is unsure if that will be his next competitive event.

"It's tough to say right now. That's, what, five weeks ahead, I think? It's kind of tough to say that," he told a news conference.

"I won't miss it, I know that, but tough to say if I'll play anything before that just for how it feels, how rehab goes and everything."

He added: "I wouldn't have been playing for another month if it wasn't this week. So I'll take a nice long break after this.

"Way I look at it, I have two more days to do rehab that I probably wouldn't get if I was out here, and I'll get ready for the PGA."

Koepka, who was playing just his sixth tournament of the year, lamented his putting performance at the Masters.

"Putter was ice cold, didn't make any putts. I don't want to say the speed was off, maybe the reads a little bit. Maybe the start line. I'm not quite sure," he said.

"A lot of them felt like good putts, and they weren't even hitting the hole. I don't know. It could be any one of those things. They felt good coming off the face, but they didn't even sniff it."