Tuilagi was again included in 's squad to the 2011 Rugby World Cup in New Zealand. He started in all 4 pool games and scored a hat trick against . After the eight years with Leicester, Tuilagi left following the 2011–12 Aviva Premiership season to join NTT Communications Shining Arcs of the Japanese Top League. On 8 May 2014, Tuilagi returned to England to compete in the Aviva Premiership with Newcastle Falcons on a two-year contract, rejoining with his brother Anitelea Tuilagi.