DeChambeau, who has appeared infrequently on the PGA Tour this season due to a hand injury, said he was heading to the course to try to play the second major of the season.

"On my way to Southern Hills CC," DeChambeau tweeted his followers on Monday.

"Going to test how I am feeling over these next couple days and decide on whether to compete. Looking forward to being in Tulsa."

DeChambeau underwent surgery on his left hand on April 14 to repair a fractured hamate bone. At the time, he said he looked forward to "competing at the highest level within the next two months," a timeline that put the PGA Championship in serious doubt.

The long-driving 28-year-old missed much of the start of the season with the injury along with a minor labrum tear in his hip. He played The Masters in April and missed the cut, shooting a 76 and an 80, before deciding to have surgery later that week.

DeChambeau won the U.S. Open in 2020 a month after posting his best career finish at the PGA, a tie for fourth. He made the cut in all four majors last season but did not finish in the top-20 at any.

If DeChambeau, ranked World No.22, withdraws from the PGA Championship by Thursday, first alternate Denny McCarthy would replace him in the field. Three of the world's top-26 players have already withdrawn: No.20 Sungjae Im of South Korea (COVID-19), No.23 Paul Casey of England (back), and No.26 Harris English (hip).