Josh Giddey set for massive future after NBA draft, Joe Ingles says

Which NBA star is Giddey looking forward to facing most? (1:38)

NBA Draft prospect Josh Giddey shares the names he's most looking forward to lining up against in the NBA, and whether he'll be overawed. (1:38)

Don't call him a mentor - Joe Ingles says that would be selling Josh Giddey's smarts short.

Instead they're just a couple of mates, representing the Boomers' present and future hopes, staying in touch before the 18-year-old Giddey begins his NBA journey.

The 200cm-tall point guard will learn his fate on Friday, tipped to go as high as No.7 to the Golden State Warriors in the NBA draft or taken at No.10 by the Memphis Grizzlies.

The NBL Rookie of the Year averaged 10.9 points, 7.6 assists, 7.3 rebounds and 1.1 steals in 28 games for the Adelaide 36ers, becoming the youngest Australian to register a triple-double in the league.

As well as keeping in regular touch with Utah Jazz veteran Ingles, Giddey has been working with Australian basketball great Andrew Gaze, who admits he's disappointed the teenager wasn't selected by Brian Goorjian in the team currently chasing Olympic gold.

He remained part of the extended squad though, choosing to travel to Las Vegas for exhibition games and notching 14 points, four rebounds and three assists against Nigeria with NBA scouts, who had already followed him to Australia, watching on.

Ingles is confident Giddey's non-selection for the Tokyo tilt won't turn him off the national program and those smarts as a tall, composed playmaker will take him far.

"He's got a massive future and we're all really excited for him," Ingles said.

"To have him around our group was really cool; he wasn't in the final team, but he was the one that elected to come with us to Vegas and be around the group

"That's pretty special ... I'm excited for him.

"I don't want to say mentoring because he's smart enough, but just talking with him over the last couple of years."

Goorjian made the tough call to leave Giddey out of his final 12-man squad but says he's "very important" as a next-generation Boomer.

"It saves four years because he touched this (by playing an training in Las Vegas)," the coach said.

Giddey: Young Aussies will carry Boomers legacy

Having been coached by the likes of Andrew Gaze and Chris Anstey, Josh Giddey is well-versed in the value of the green and gold.

"And when those guys (Ingles, Patty Mills, Aron Baynes and Matthew Dellavedova) go it's him, Matisse (Thybulle), (Josh) Green, those guys are very important.

"In Vegas the scouts came in, he played in the Nigeria game and played very well.

"So his time in the Boomers certainly wasn't a negative for his draft status.

"His appeal has gone forward ... so it was a good marriage both ways."