Two years ago Cameron Davis and Curtis Luck left the El Chamelon Golf Club in Mexico on top of the world; they return this week intent to prove their credentials amongst some of the leading professionals on the planet.

Davis, Luck and Matt Jones are the three Australians lining up for the PGA Tour’s Mayakoba Golf Classic at the Greg Norman-designed layout in Riviera Maya where the likes of Jordan Spieth, Rickie Fowler, Zach Johnson, Tony Finau and Gary Woodland headline the field.

Although inexperienced in the ways of the PGA Tour, the Aussie rookies know what it takes to be successful at El Chameleon having finished first and second in the individual section of the Eisenhower Trophy and spearheaded Australia’s 19-shot romp alongside Harrison Endycott.

Davis doubled up on his El Chameleon success when he was tied for 15th in his PGA Tour debut just two months later, banking $US130,000 in the best possible start to his professional career.

He now returns a member of the PGA Tour and eager to continue his Mexican love affair ahead of the defence of his Emirates Australian Open title at The Lakes Golf Club in Sydney next week.

"(The Australian Open) is going to be a quick turnaround from playing in Mexico but I’m super excited as it’s been a while since I’ve been back in Australia," Davis told AAP.

"It’s going to be a very different experience than the Open last year; I don’t know what to expect because it’s the first (pro) tournament I’ve defended, but it’s going to be fun."

With two missed cuts and a tie for 50th in his first three starts of the 2019 PGA Tour season it shapes as a critical week also for Luck.

Graduates of the Web.com Tour Finals Series will be re-ranked following next week’s RSM Classic in Georgia and with just five FedEx Cup points to his name to date Luck believes familiarity with the layout will help to improve his current standing.

"I feel comfortable around the course and that is refreshing compared to the first three courses this season,” Luck said.

"I have such great memories of Mayakoba… that (2016 World Amateur Teams Championship) is probably the most enjoyable event I’ve ever played.”

Like his younger countrymen, Jones had to come through the Web.com Tour Finals in order to maintain his PGA Tour status for 2019, his best result in the Mayakoba Golf Classic coming in 2013 where he was tied for 31st.

New Zealand World Cup representative Danny Lee is also teeing it up at El Chameleon this week where he has a best result of tied for third in 2014.