United officials cut back the number of people training at the club when the current lockdown began to just contracted players and a couple of regular attendees, which will reduce the number of close contacts.
Previously they had two separate training squads working out twice a week, including some overseas-based players, but those sessions were stopped well before July 22.
McCarron is a member of the Australian Boomers squad and one of United’s star players while Lual-Acuil is an emerging big man.
The league has also suspended training for the South East Melbourne Phoenix as a precaution despite their training base being at the State Basketball Centre in Wantirna South. No one from the Phoenix has tested positive.
The NBL and United did not state how many players and staff would need testing, but United’s non-basketball staff have all been working from home and not interacting with the players.
NBL commissioner Jeremy Loeliger said the league and club were focused on helping the players and staff over the next 14 days.
“Our concern is for players and staff and ensuring that we follow the right protocols to minimise any further risk to the wider community,” Loeliger said.
“We are providing support for both clubs, in particular those players who have returned positive tests.
“We have decided it’s in the best interests to also suspend South East Melbourne training as a precautionary measure.