Tiger Woods says he feels physically strong after his first round of 73 at the Memorial Tournament in Ohio.
The former world number one struggled with back problems last year and is trying to get back to his best at Muirfield Village, where he has won this tournament on five previous occasions.
After a slow start to his first round, he managed to birdie three holes on his back nine to finish one over-par for the event.
Woods was content with how he went about his opening round but admitted it was a mental struggle with some of his wayward shots on the fairway.
He said: “I was just trying to stay committed to what we’re working on, to what we’re doing.
“I hit it awful, yeah. So what? I was going to go through this phase and stick with it, keep sticking with it.
“Some of the shots I hit were really, really good. But then I also had some really bad shots, too. And we need to work on that. Physically, I feel good. Mentally I feel beat up.”
Meanwhile American Bo Van Pelt and defending champion Hideki Matsuyama currently lead the tournament after impressive rounds which saw them finish on eight under-par.