The Boomers have vowed to rally around teammate Dante Exum, as he faces the prospect of missing both next week's Rio Olympics qualifying series and the entire NBA season.
It's feared the 20-year-old tore knee ligaments in Australia's 66-51 win over Slovenia in Ljubljana early Wednesday morning, their fourth and final tour match in Europe.
The Utah Jazz point guard collapsed after his left knee buckled on his way towards the basket.
He was treated onsite by Basketball Australia medical staff but has flown straight to Jazz HQ in Salt Lake City for further assessment.
The early but unconfirmed prognosis is a torn anterior cruciate ligament - which, after surgery, can take anywhere from six to 12 months to recover from.
It means Exum will miss the Boomers' two-leg Oceania championships against New Zealand starting on August 15 in Melbourne, which double as a chance to directly qualify for the 2016 Olympics.
It also puts in doubt his availability for the upcoming NBA season.
Jazz teammate and fellow Boomer Joe Ingles spoke to Exum soon after he suffered the injury from Sydney.
"He was obviously pretty down," said Ingles, who is sitting out the Boomers' qualifying campaign to recover from a tough first NBA season.
"It didn't look great but obviously you hope for the best and hope it's not (a torn ACL).
"Me and Dante are really good mates, roommates, and obviously playing in Utah this year, it was another step of our friendship.
"I'm just really disappointed for him - all the work he did at the end of last season, especially the second half of the year and what he did for our team, he proved that he's an NBA player.
"But we'll get behind him and support him when we find out the official news."