In the NPC, another massive defensive effort saw Northland secure a bonus-point win, with tries to halfback Lisati Milo-Harris who bagged a double while tireless loose forward Rob Rush and winger Heremaia Murray also got their names on the scoresheet.
For the Stags, a mountain of wasted opportunities turned out to be their Achilles heel and despite having the trusted boot of Marty Banks, they turned down a number of kickable penalties in favour of the lineout.
Despite scoring three tries, it was a hugely frustrating night for the visitors— so far winless in the competition— as their attack went sideways instead of forward during multiple phases of play.
Northland players were not afraid to put the shoulder in while defending their line and were masters at converting pressure into points.
Former Highlander, Chiefs and Māori All Black Robbie Robinson had his work cut out by the Northland defence and Isaac Te Tamaki knocking the ball off a kick/chase in the Northland half summed up the Stags' frustration.
Also hurting Southland was their ill-discipline, which allowed Northland fist five Rivez Reihana to cash in with his unerring boot.
Northland have moved into third position on the points table, behind Auckland and Canterbury, and host Auckland on Saturday.