The tighthead prop played another 10 matches for Tasman in 2021 and nine in 2022.
Matenga, 25, has a three-year contract with Seattle Seawolves in Major League Rugby (MLR) and has played 29 times for the American side over the last two seasons, including the 2022 MLR Final which Seattle lost.
Wellington’s 7-nil Ranfurly Shield victory over Tasman on Wednesday was the lowest scoring Shield match in 53 years.
Back in 1970, the disappointed challengers were Wellington who failed to take the Shield home after a 3 - all draw with Canterbury.
Red and Black legend Fergie McCormick — a controversial figure after his recent teeth-breaking clash with Springboks winger Syd Nomis — ensured the Ranfurly Shield remained in Christchurch with a last-minute drop goal.