All eyes will be on world No 1 Scottie Scheffler, who can become just the seventh golfer in history to complete a career Grand Slam, this week with a victory this Sunday on his 30th birthday. Photo: AFP

Top-ranked Scottie Scheffler, seeking a career Grand Slam with a victory in this week's 126th US Open, tested himself in windy afternoon conditions Monday as practice began at Shinnecock.

Brisk breezes, dense rough and greens that are lightning-fast despite rain and watering made practice rounds tough for those who braved the 7 440-yard, par-70 layout on eastern Long Island.

"I wouldn't want to be putting aggressively on these greens," said 2022 US Open champion Matt Fitzpatrick of England.

"You have to pick and choose your moments, and that's where course management comes in. You can try to leave it under the hole on some.