Cameron Smith hosted two Aussie juniors at the U.S. Open: Buttress and Guan are both promising amateur golfers who won Smith's annual scholarship.

Buttress is a rising star from Perth: He has won several tournaments in Australia and is ranked #1 in the country for his age group.

Guan won the Junior Players Championship: He is a two-time winner on the PGA Tour Latinoamerica and is ranked #2 in the world for his age group.

Smith gave the two teens short-game lessons: He also played rounds of golf with them in the Jacksonville area.

Smith took the duo on a private jet to Los Angeles: They attended the U.S. Open and met with several celebrities, including actor Chris Pine.

Buttress and Guan are both grateful for Smith's generosity: They say he has been a great mentor and role model.

Smith is excited to see what the future holds for Buttress and Guan: He believes they have the potential to be great golfers.

The U.S. Open is the first major championship in Los Angeles in almost 30 years: It is expected to attract a large crowd, including many celebrities.

The tournament is being held at L.A. Country Club: The course is known for its challenging layout and tight fairways.

The U.S. Open begins on Thursday, June 16th: The tournament is expected to be a close one, with several contenders in contention.