Wyndham Clark, who smashed his locker in frustration after missing the cut at last year's US Open, arrived at Shinnecock for this year's Open seeking redemption and better results.
The 2023 US Open winner has apologised for his actions last June at Oakmont, which prompted the club's board of directors to ban him from the 2033 US Open host course until he met certain guidelines.
The 32-year-old American smashed a locker in the Oakmont clubhouse locker room at last year's US Open after missing the cut. Clark apologised and agreed to pay to repair the damages.
"That was a really challenging time and something I've deeply regretted and feel awful that I did that," Clark said on Monday.
"But there were so many good lessons in that that really taught me a bunch. I've really come a long way.
"I'm excited for this year's Open for some redemption and to move forward and enjoy the challenges of Shinnecock."
Clark has spoken about the incident several times in the year since Oakmont's directors banned Clark unless he paid for repairs, made a contribution to a board-selected charity and enrolled in anger management classes or counseling.
Clark said after last year's British Open that "what happened there was not a reflection of who I am and won't happen again."
Clark, ranked 34th, won the PGA Tour's CJ Byron Nelson title three weeks ago for his fourth career tour triumph, then thanked his sponsors for sticking with him because "what happened at Oakmont wasn't the greatest thing."
"The greatest thing about having a downfall like that is the comeback," Clark said. "Today feels really special after having a tough year and grinding it out."
With brisk winds, dense rough and lightning-fast greens, this week on the 7 440-yard Long Island layout will be just as formidable as the one that led to him lashing out at Oakmont, but Clark's game is in a better place, he said.
"It has been feeling really good," he said. "I've been starting to really putt good and the swing has been kind of trending all year. I'm excited to be here playing some good golf."
Clark said he is prepared for the patience he said is needed to be successful at Shinnecock.
"I feel like anytime I'm in the fairway, I can play some really good golf," Clark said. "I know it's a little bit wider off the tee, which I'm excited about.
"You're just going to have to handle the punches that Shinnecock is going to give you and stay really patient."