Rory McIlroy given warning before the US Open starts as Dustin Johnson’s former coach predicts ‘chaos’ is about to happen

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Rory McIlroy is among the star-studded field taking on the US Open this week, which takes place at Oakmont Country Club.

McIlroy won the US Open in 2011, with the success representing one of his five major championship titles.

His most recent arrived at The Masters earlier this year, which represents his third PGA Tour win of the season and 29th overall.

But McIlroy has struggled to push on from his Augusta triumph, missing the cut at the Canadian Open in his most recent tournament.

His focus now turns to the US Open, where he has been paired with Shane Lowry and Justin Rose for rounds one and two.

Rory McIlroy given warning right before the US Open at Oakmont

Paul McGinley is worried for McIlroy ahead of the US Open, with the latter having now been issued a warning by Dustin Johnson’s former coach Claude Harmon.

He said on the Son of a Butch with Claude Harmon podcast: “This is a big boy golf course that demands great play from great players.

READ MORE: What Rory McIlroy’s team are saying has happened to him on the driving range just before the US Open starts

“The way that Rory drove the golf ball last week and the way he drove the golf ball at Quail Hollow. He has been talking about trying to find a driver after his driver failed testing at the PGA.

“If Rory does not drive it well here he is going to struggle. Everyone is going to struggle if they do not drive it well here.

“But for the favourites – guys like Rory, like Scheffler, all the superstars. You have to drive it well and then you have to be really smart with your irons.

“You have to put it in positions to where you have to think about I have got to try and get this close but be above the hole, is it more prudent to be below the hole and then I can be a bit more prudent with the putt.

“I think you will see the usual cast of characters on the leaderboard. This golf tournament always throws up someone who isn’t a household name or isn’t a superstar. But expect chaos. This is golf chaos in its purest form.

“I think the winner here will have to win the golf tournament, win the championship, hold the trophy, be a major championship. They will have to win it not only with his body and his stamina but with his mind as well.”

Rory McIlroy 2025 PGA Tour results ahead of the US Open

McIlroy started his latest PGA Tour season in stunning form, winning the AT&T Pebble Beach Pro-Am on his first start of 2025.

He quickly added titles from the Players Championship and The Masters to his honours list, winning both via a playoff.

READ MORE: Five top players who missed the cut last time the US Open was held at Oakmont including Rory McIlroy and Phil Mickelson

But a dip in form of late could play on his mind at Oakmont, which is already tough as it is without any further mental worries.

Playing alongside his good friend Lowry could, however, help settle any nerves early on, with the pair enjoying a close relationship on and off the course.