Brisbane Bullets training player Najeal Young has been deregistered by the NBL for COVID-19 protocol breaches.
Young was part of the Bullets squad for last weekend's pre-season practice games against the Adelaide 36ers in South Australia.
On return to Brisbane this week, he allegedly ignored Queensland government requests to undertake COVID-19 testing and self-isolate.
Young, who was not a member of the Bullets' official NBL roster, is now under investigation by the Basketball Australia Integrity Unit.
He is not allowed to take part in NBL activities, including training, while the investigation is ongoing.
All other Bullets players and staff have complied with the government requests and are self-isolating for 14 days.
The Bullets on Thursday said they supported the NBL's decision to deregister Young.
"As a club we take the directions of the government and chief health officer very seriously and Najeal's failure to do so was unacceptable and we fully support the NBL's action," Bullets chief executive officer Peter McLennan said.
"The health and safety of our players, coaches, staff and the broader community has always been our priority.
"Our players and staff affected will continue to self-isolate for a period of 14 days as directed.
"Players will complete a training program from home as they prepare for the 2020-21 NBL season due to commence in mid-January."