Career
A Tongan international representative three-quarter or second-rower, he is the younger brother of Parramatta Eels centre Willie Tonga. In 2005 Tonga graduated from Marsden State High School in Logan City. In August 2008, Esi Tonga was named in the Tonga training squad for the 2008 Rugby League World Cup, and in October 2008 he was named in the final 24-man Tonga squad.
He is of both Australian Aboriginal and Tongan descent.