Coletta became the first amateur since Stuart Appleby in 1991 to win the professional Queensland Open last year.
The Victorian turned professional in January and made his professional debut the same month at the Singapore Open, followed by his US PGA debut at Pebble Beach whilst also making his first PGA Tour cut at The Memorial Tournament in June.
This year, Coletta has cemented himself as a player of the future with solid performances and has even earned high praise from legend of the game and fellow Australian, Greg Norman.
With intimate knowledge of The Brisbane Golf Club layout, Coletta is keen to lift the T.B. Hunter Cup for the second year in a row.
And spectators in Brisbane next month can expect some big drives from the 21-year-old.
"I sometimes freak myself out how far I can hit it," Coletta said, without a hint of arrogance.
"Length-wise, I'm not the biggest guy out there but I can keep up with the bigger guys. I have always had that x-factor, but sometimes, I still freak myself out."
"A tournament like the Queensland Open is extremely important," Coletta stated. "It gives that insight into what professional golf is like."
Isuzu Queensland Open Tournament Director, Luke Bates, said having Coletta back at The Brisbane Golf Club to defend his title was a bonus for the tournament.
"Brett now has some great tour experience and will no doubt use this to his advantage," Bates said.
"We welcome Brett back to the Isuzu Queensland Open and look forward seeing him out on course in October."
WEEKEND PINS: 9TH AT PALMER COOLUM (QLD)