Jono Viviani first scored his second of the game before Bailey Webster scored the goal of the match with a long range effort which beat Metro's keeper Henry van Dyk.
In the last minutes of the game a brawl began, with Jono Vivani and Bailey Webster both issued red cards. They will miss the game against Albany United next weekend.
Melville United held on to their lead at the top of the table in division one after a difficult 2-1 win against Ellerslie Football Club.
Jama Boss was the hero again for Melville as he scored twice to make sure that the team's promotion push remained on track.
Hamilton Wanderers were defeated 2-0 against Waitākere United and dropped to fifth in the Premier League.
In the women's league, Wanderers held on to a 1-1 draw against champions Three Kings United. Ella Golding scored in the first half before Sophie Stewart-Hobbs pulled one back for Three Kings.
Claudelands nightmare continued at the bottom of the table, losing 6-1 to Forrest Hill.