In 2007, he was appointed as the head coach for the Joeys. In 2006, Martyn was inducted into the FFSA Hall of Fame in the Roll of Honour as a member for Distinguished Contribution. In 2010, he was posthumously inducted into the Football Federation Australia’s Hall of Fame. He died of a suspected heart attack just before the team was scheduled to play the USA Under-17 in an international junior tournament. He was 52. In 2009, Martyn's family established The Martyn Crook Foundation (MCF) (www.tmcf.org.au)to assist in the advancement of Association Football in Australia and to encourage young football players and coaches with ambition to realise their full potential regardless of their race, gender or financial standing, at all levels of the game. A partnership has been established with Adelaide United FC that supports the development of outstanding talent in young Australian players, with a grassroots program to assist at all other levels. The Foundation relies on the support of individuals and organizations, both private and public, to continue its work. Through its Board of Trustees, the Foundation supports such activities as it believes to be in tune with the Foundation’s objectives.