The Breakers confirmed centre Rob Loe will remain in hospital after suffering a skull fracture during Thursday's 101-70 win over the Illawarra Hawks.
The centre was hit in the head by the elbow of Hawks' guard LaMelo Ball during the first quarter of their clash at Spark Arena.
Clearly in pain, Loe managed to walk off the court before he was taken to hospital.
After the match, Breakers head of basketball Dan Shamir said Loe had suffered a "serious" injury but didn't go into any more detail.
On Friday, the club confirmed the worst for Loe, who said the 28-year-old needs more tests to determine the full extent of the injury.
"Confirmed fracture but won't know more until further tests are done this weekend, sending all our thoughts and a speedy recovery to the big man," the Breakers said in a tweet.
Loe is in his first season back with the Breakers after spending last season with the Cairns Taipans.
Breakers guard Corey Webster is hopeful Loe isn't out to an extended period.
"Me and Rob have got a great relationship, obviously went to high school together, played Tall Blacks together for many years and played Breakers," he said."It's really unfortunate.
"I feel so bad for him, he was playing great, he just had his momentum going, and he was going to have a huge season hopefully, he's not out for too long.
"We are all thinking about him and wishing him well.
"Rob leaves a big hole, obviously he's a shooting big man, and just a very high IQ player, who knows the system well and he’s just smart on the floor so he's a huge hole, but we've got guys who are going to step up and hold it down till he gets back."
The injury overshadowed the highly anticipated matchup between Ball and Breakers guard RJ Hampton - who are both projected to be top draft picks in the 2020 NBA Draft.
With their first win of the season under their belt, the Breakers now head across the Tasman to take on Melbourne United - guided by former Breakers coach Dean Vickerman, centre Alex Pledger and guard Shea Ili - on Saturday.