Australia's golfing stars have joined a chorus of players urging the United States Golf Association, organiser of the US Open, not to blow another championship with controversial course set-ups.
The US Open is marketed as "golf's toughest test" and is notorious for setting up courses with thick rough and lightening-fast greens in an effort to keep the winner's score close to even-par.
This year's US Open starts Thursday at California's iconic Pebble Beach Golf Links.
The USGA has been excoriated by competitors and golf pundits for embarrassing course set-ups that have resulted in controversies during recent US Opens.
At last year's event at Shinnecock Hills, the USGA failed to monitor predicted strong winds before Saturday's third round and placed the flagsticks in nightmarish locations on the greens that made it impossible to stop the ball close to the hole.
Phil Mickelson, a six-time runner-up in the event, ran after his ball and illegally putted it before it could roll off the 13th green.
Facing a possible disqualification, Mickelson was instead penalised two strokes and made a 10 on his way to an 81.
In 2015, the USGA failed to water the greens sufficiently for the summer conditions at debut US Open host, Chambers Bay.
The grasses died and big-name players such as Henrik Stenson remarked it was "like putting on broccoli".
Australian world No.21 Marc Leishman urged the USGA not to embarrass themselves at the seaside Pebble Beach, one of golf's most famous courses.
"I'm not too optimistic they'll do a good job at Pebble, but we'll see. I hope I'm wrong," he said.
"I just wouldn't do anything silly. You can get a golf course to where you want it for a US Open without rolling a green 10 times.
"I'd make the course get progressively harder, but not flip a switch like they did from Friday to Saturday at Shinnecock.
"At Pebble, I'd make the fairways a little narrower and the greens firmer. I want it to be a tough test, but not ridiculous.
"Shinnecock Hills is one of the best courses in the world. They embarrassed that, I feel."
Former world No.1 Jason Day, twice a runner-up at the US Open, added: "What makes the US Open is that it's a major, first and foremost. It's about the players in the event.
"Once the USGA start becoming the attraction at the US Open, it takes away from the tournament itself and the champion."
Cameron Smith warned if the course set-up was too penal, speed of play could be an issue.
"I'd make Pebble Beach firm and fast," he said. "There are such big slopes on the greens at Pebble, if they don't tread carefully there could be six-hour rounds."