The silent assassin of the middle order, the Western Australian's ability to score without being noticed has been a feature of his side's run accumulation during their most successful period in history.
Classical, reliable and unflappable, he is also a versatile fielder.
Martyn was dropped after the 2005 Ashes series but has re-established himself again and was in sparkling form during the 2006 ICC Champions Trophy.
He averaged over 76 in the 2001 Ashes series but, after being excluded in 2005, may have thought his international career was over but the selectors opted to go with his experience on the tour to South Africa.
A composed century in the final Test confirmed his return to the side, but he struggled in Bangladesh.
When he is in form he makes batting look easy and plays well through the on side. Many Yorkshire supporters remember several class knocks he played for them during a short spell at the county.
Martyn shocked the cricket world when he announced his immediate retirement from the game mid-way through the 2006-7 Ashes series.