Peter Casey-USA TODAY Sports

If Will Zalatoris can complete his mission in the final round of the U.S. Open on Sunday, he'll know he was deserving for multiple reasons.

"This golf course is an absolute beast," Zalatoris said. "You look at the major champions who are on that leaderboard, it's going to be no small test (Sunday)."

Zalatoris shot 3-under par 67 on Saturday to share the lead through three rounds, putting the young golfer in contention at yet another major championship.

He's joined at the top by Matt Fitzpatrick of England at 4-under 206 at The Country Club in Brookline, Mass. Fitzpatrick shot 68 in the third round.

Defending champion Jon Rahm looked to be in position to hold the third-round lead until a double-bogey 6 on the last hole, unable to get out of a sand bunker that turned costly. He's alone in third, one shot back of the leaders.

Rahm went to the top of the leaderboard with a birdie on the 17th hole.

Zalatoris, 25, is contending in a major for the second month in a row after falling in a playoff to Justin Thomas in the PGA Championship.

Fitzpatrick led briefly late in the day with a birdie on No. 17. He fell back into a tie with Zalatoris, who already had finished his round, with a bogey on the final hole.

But Rahm wasn't finished, posting birdies on Nos. 14, 15 and 17 and appearing in good shape until a mess on No. 18.

First-round leader Adam Hadwin (70) of Canada, Scottie Scheffler (71) and Keegan Bradley (69) are tied for fourth at 3 under. Bradley, a Vermont native, is giving the tournament a particular New England flavor.

Members of the gallery chanted Bradley's name as he approached the 18th green and he'll be the fan favorite for the final round.

"That walk up 18 was probably one of the highlights of my whole entire life," Bradley said.

Sam Burns (71), Rory McIlroy (73) of Northern Ireland and Joel Dahmen (74) are all at 1 under.

"I knew it was going to be hard," Dahmen said. "I didn't know it was going to be that hard."

Zalatoris, who was the 2021 runner-up at the Masters, tied for sixth in the 2020 U.S. Open. He played the backside in 1 under Saturday.

Fitzpatrick already owns success on the course, winning the 2013 U.S. Amateur at the site.

Fitzpatrick is aiming to become the first non-U.S. golfer to win the U.S. Amateur and U.S. Open. He said the importance placed on the majors adds to the drama.

"At the end of the day you only get four attempts a year, and that's if you're in them," Fitzpatrick said. "Some guys maybe don't play four and play one or two."

Zalatoris, a former college golfer at Wake Forest, and Fitzpatrick were tied for second place after three rounds of May's PGA Championship in Tulsa, Okla.

Windy conditions created trouble for many golfers Saturday. Long sleeves were the order of the day for many on the course.

"It felt like I shot 61, honestly," Zalatoris said.

Scheffler took the lead on the eighth hole by chipping in for an eagle from about 100 yards. But he hit trouble spots with a double-bogey 5 on the 11th hole and bogeys on the next three holes.

Still, Scheffler made a difficult par-saving putt on the last hole to stay in the mix.

Collin Morikawa, who won the PGA Championship in 2020 and British Open in 2021, and Dahmen were the co-leaders at the midway mark through Friday's round. They experienced varying degrees of difficulty.

Morikawa was even through five holes, then suffered a bogey and double-bogey on the next two holes. He shot 77 to slip into a tie for 17th at 2 over.

Twenty-three golfers began the third round under par. By the day's end, there were nine.

U.S. golfers have been dominating the leaderboard, but four players from other countries sit T7 or better within three shots of the lead.

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