Tonga have qualified for the 2019 World Cup to complete the line-up for England's group.
Samoa's 38-16 defeat to Fiji at the Pacific Nations Cup, which featured a hat-trick from Henry Seniloli, ensured they can no longer catch Tonga in the standings.
That leaves Tonga as the second Oceania qualifier and they will join England, France, Argentina and the United States in Pool C in the tournament in Japan.
