The Akarana Falcons will be without prop Siliga Kepaoa for the upcoming National Premiership season following two positive tests for the prohibited substance Higenamine.
The Falcons have won consecutive New Zealand Rugby League National Premiership titles, with Kepaoa scoring the opening try in last year's grand final win over Waikato.
But he won't be available for the Falcon's title defence, following his transgression.
Kepaoa's first positive test was after a Falcons training session on 19 September 2017.
Because Mr Kepaoa was not notified of the first positive result before his second test, the two violations are treated as one, in accordance with the Sports Anti-Doping Rules.