Sopoaga, 28, left New Zealand in 2017, signing a two-year deal with Wasps for a reported $1.1m per season.
However, Sopoaga's arrival in England has not gone to plan, rated as the Premierships "worst signing" after his first season.
Now into his second year with Wasps, Sopoaga's woes have continued, left out of their match day 23 altogether as his side fell 35-31 to Northampton.
Rookie and former England youth representative, not to mention nephew of All Black Tana, Jacob Umaga took the number 10 jersey, while 36-year-old Jimmy Gopperth was in reserve.