Tonga coach Isitolo Maka has named brother Finau as captain and the party includes vice captain Vungakoto Lilo of Bristol, Perpignon prop Kisi Pulu and Beziers back-row Samiu Vahafolau amongst its overseas players, as well as the Stade Toulouse-based Maka.

Lutui joins Fiji's Ravai Fatiaki as Worcester players who will compete in the tournament. Tonga will take on hosts New Zealand in the opening game of the tournament in Auckland on September 9.

Tonga 30-man squad: Aleki Lutui, Ephraim Taukafa, Aloisio Ma'asi, Alisona Taumalolo, Kisi Pulu, Soane Tonga'uiha, Halani Aulika, Taufa'ao Filise, Kelekolio Hehea, Sione Timani, Tukulua Lokotui, Joseph Tu'ineau, Sione Kalamafoni, Finau Maka (captain), Viliami Ma'afu, Samiu Vahafolau, Sione Vaiomo'unga, Taniela Moa, Thomas Palu, Samisoni Fisilau, Kurt Morath, Siale Piutau, Alipate Fatafehi, Andrew Ma'ilei, Sukanaivalu Hufanga, William Helu, Fetu'u Vainikolo, Alaska Taufa, Viliame Iongi, Vungakoto Lilo.