Aussie Smith has major credentials - coach

Cameron Smith underlined his enormous promise with his breakthrough win at the Zurich Classic of New Orleans team event and the Australian tyro has the all-round game for major success, according to his long-time coach Grant Field.

The 23-year-old's triumph in a playoff with Swedish partner Jonas Blixt at TPC Louisiana on Monday put him in esteemed company in Australia.

Only Jason Day and Adam Scott have claimed a US Tour event at a younger age.

Both Day and Scott have gone on to win majors and claim the world number one ranking since their breakthroughs in America and a number of pundits feel Brisbane-born Smith could be cut from the same cloth.

Although reluctant to put too much pressure on his charge, Field, who has worked with Smith since he was 11 years old, feels the high expectations are justified.

"I don't think he has a real weakness," he said on Tuesday.

"There's nothing in his game that really lets him down.

"Especially, he has an amazing short game which was evident over the last few days as well.

"When things get tough (at the majors) you need to rely on that and it's a huge skill for him to have."

Having kept a check on his emotions during the tense final holes in New Orleans, an overwhelmed Smith was speechless during a TV interview afterwards, eventually mumbling: "I can't even talk, I'm sorry."

Field said Smith never gets too down on himself and tends to leave the game on the course when he steps off it.

"It doesn't bother him too much. His nature is to go about his business," said Field.

"He doesn't go for the limelight. He doesn't sort of go chasing stardom as such. Anything that comes his way, he will have earned."

Smith has not qualified for next month's US Open but Monday's win secured him a spot in next week's prestigious Players Championship at TPC Sawgrass in Florida and another big stage looms with his debut British Open at Royal Birkdale in July.