Background
Martens was born in Auckland New Zealand to a Tongan mother and Australian father.
Martens was born in Auckland New Zealand to a Tongan mother and Australian father.
He spent most of his childhood in the Islands of Tonga where he was moved to Auckland New Zealand to start his education. His high school years were spent at Onehunga High where he went on to play rugby for Auckland and continued through the grades to reach New Zealand Schools status. In 1999 he played for Tonga in the Rugby World Cup which led to a professional rugby contract with English premiership side Worcester.
From 2000 to 2002 he played for Swansea in the Welsh Premiership.
2002 -2003 he joined fellow Welsh team Bridgend. During the 2003/2004 Martens joined the short lived Welsh regional side Celtic Warriors.
He played is his second Rugby World Cup in 2003 for Tonga. In 2008 he played in the Pacific Islands Team which toured the United Kingdom. The 2008/2009 season saw Martens return to Welsh rugby joining the Scarlets.
Martens position is scrum-half, he currently plays for Carmarthen Quins, having mutually agreed that his contract with the Scarlets would be terminated in 2009.
His previous clubs include Swansea, Bridgend, Celtic Warriors and Sale Sharks. Martens acted in the Welsh language soap opera Pobl y Cwm and went on to play a small role in the film Invictus along with fellow Tongan Epeli Taione.