The PGA Tour stars were among 60 players from 36 countries to qualify for the men's tournament at the Games, which will be contested at Kasumigaseki Country Club from July 29 to August 1.

After teaming up in April to win the PGA Tour's lone team event in dramatic fashion in New Orleans, Leishman said he was "all in" for an Olympics berth – with the higher ranked Adam Scott passing on the opportunity.

"It would be huge. I would love to contend for any medal, to be honest," World No.43 Leishman said.

"Obviously you want to go for gold.

"But something I never ever thought I would do would be have a chance to win an Olympic medal."

World No.28 Smith was equally excited.

"Any chance I can get to put on the green and gold or a team shirt I'm all in. I'm a hundred percent," he said.

"Any chance I can get to put on the green and gold or a team shirt I'm all in. I'm a hundred percent."  Cameron Smith

"I was kind of bummed I didn't get in the team four years ago.

"It was really a goal of mine and I'll be thrilled if I'm there and contending on the weekend for a gold medal."

Marcus Fraser and Scott Hend represented Australia in Rio, with Fraser finishing fifth.

The field in Tokyo will include US Open winner and top ranked Jon Rahm of Spain and, despite a number of players making themselves unavailable, six of the world's top 10.

The United States is the only country with more than two qualifiers with their quartet of Justin Thomas, Collin Morikawa, Xander Schauffele and Bryson DeChambeau among the favourites.

The three medallists from Rio – Justin Rose of England, Henrik Stenson of Sweden and Matt Kuchar of the US – did not qualify for this year's Games.

The women's 60-player field for Tokyo will be confirmed after this week's Women's PGA Championship with Minjee Lee (World No.14) and major champion Hannah Green (ranked 15th) all but locked in for Australia.

Lee was seventh at the Rio Olympics while Green has not been an Olympian before.

The women's tournament will be held at Kasumigaseki Country Club from August 4-7.