Dustin Johnson says he will not be part of the US Olympic golf team in the Tokyo Games this summer.
The world's top-ranked player admits his schedule isn't conducive for trying to win a gold medal in Tokyo.
The Open is set to be held in England from July 15-18 with the Olympic golf competition scheduled to start July 29 in Japan.
"It's right in the middle of a big stretch of golf for me, so that was the reason I was kind of waffling on it a little bit," Johnson says.
"It's a lot of travelling at a time where it's important for me to feel like I'm focused on playing on the PGA Tour."
After the Olympic golf competition ends on August 1, there isn't much time to recuperate as the WGC-FedEx St. Jude Invitational in Memphis is slated for August 5-8.
"I think if there was a little more time [between tournaments], especially if you weren't trying to fly right from Tokyo to Memphis and play a WGC, yeah, I obviously definitely would have thought about it a lot more," Johnson notes.
Johnson also decided not to compete in the 2016 Summer Games in Rio de Janeiro. He cited concerns over the Zika virus.
Only four golfers from a country are eligible to play in the Olympics.
The top 15 players in the Olympic Golf Rankings following the US Open in June will be eligible to be selected.
Among the Americans in the mix are World No. 3 Justin Thomas, No. 4 Collin Morikawa, No. 5 Xander Schauffele and No. 6 Bryson DeChambeau.
Johnson shot 1-over 73 on Saturday at TPC Sawgrass and is at even par for the tournament.
England's Justin Rose won the 2016 gold medal in Rio.