 This could see him sidelined until February 2013.In May 2013, it was announced that Vuna would leave the Rebels at the end of the season to join Japanese Top League club Toshiba Brave Lupus.He joins head coach Damien Hill and fellow Rebels players James O'Connor, Gareth Delve, Ged Robinson, Nick Phipps, Nic Henderson, James King, Tim Davidson and Richard Kingi on the list of departing Rebels at the end of 2013.