Career
He previously played for the Newcastle Knights and Melbourne Storm in the National Rugby League. He primarily plays as a centre. Born in Auckland, New Zealand, Sa'u played his junior football for Logan Brothers in Queensland, Australia before being signed by the Canberra Raiders.
He played for the Raiders' Premier League team in 2006, scoring 7 tries before signing a 4-year contract starting in 2008 to be a part of the newly cleaned out Newcastle Knights. In Round 13 of the 2008 NRL season he made his NRL debut for the Knights against the Canterbury-Bankstown Bulldogs. He scored 2 tries on debut.
In June 2011, Sa'u re-signed with the Knights for a further 2 years. On 18 August 2012, Sa'u was released from the final year of his Knights contract and signed with the Melbourne Storm on a 1-year contract starting in 2013. In June 2013, it was announced that Sa'u had signed a two-year deal with Salford Red Devils in the European Super League starting in 2014.
In 2008, Sa'u was named in the Samoa training squad for the 2008 Rugby League World Cup but did not make the final squad. In 2009, Sa'u was selected in the New Zealand Kiwis Four Nations squad and made his international debut for the Kiwis against Tonga. In 2010, Sa'u was selected for New Zealand in the 2010 ANZAC Test.
He was also again selected in the New Zealand squad for the 2010 Four Nations. In 2013 Junior played for Samoa in the Pacific Rugby League International against Tonga. He was also called in the 2013 Rugby League World Cup squad to replace the initially selected Roy Asotasi.
