Tuala began his senior rugby career in New Zealand with the Counties Manukau Steelers, debuting during the
2009 Air New Zealand Cup season while only 20 years old. His ability to play in several positions across the backline saw him become an integral part of the Steelers squad and earn over 50 ITM Cup caps. However, he signed a new deal with Northampton, making his move permanent at
Franklin's Gardens. It could be said that while Tuala has been at Saints for two season now, his breakthrough year was this past season (2016/17). The full back secured his place within the starting lineup on a weekly basis while
George North was away on international duty and retained that on the wing's return, crossing the whitewash five times that season for Saints. Most recently Tuala helped Saints secure a place in
European Rugby Champions Cup, scoring the match winning try as Saints beat
Stade Francais by one point to clinch the final top-tier European spot. ==International career==