Players and management teams from the Crusaders and Chiefs Super Rugby sides have entered voluntary self-isolation, following the advice of Prime Minister Jacinda Ardern.
On Wednesday, Ardern announced that anyone who had recently returned from overseas travel in the last fortnight should enter self-isolation in response to COVID-19.
Both the Crusaders and Chiefs have recently returned from Australia, so all travelling members have entered self-isolation, effective immediately.
The Crusaders arrived back in New Zealand on Sunday, before a midnight deadline came into effect requiring all people arriving from overseas to self-isolate for 14 days.
The Chiefs travelled to Sydney earlier this month, where they played the Waratahs. They will be in self-isolation until Sunday.
Both teams have warned the public not to be alarmed if they see players or management out in public, as not every member of the teams travelled overseas.
The Crusaders and Chiefs join the Highlanders, who have been in mandatory self-isolation since returning to New Zealand from Argentina on Tuesday.