Martin Mattner (born 6 August 1982) is a former Australian rules footballer who played for the Sydney Swans and Adelaide Crows in the Australian Football League (AFL). He was traded to Sydney from the Crows in October 2007 in exchange for draft pick number 28. Mattner grew up in a small town called Ki Ki, which is 150 kilometres south-east of Adelaide. In the year he was elevated off Adelaide's rookie list (2002), Mattner was having to travel up to Adelaide twice a week to train and play football for Sturt. Prior to joining Sydney, he was Adelaide's leading tackler for the 2005 and 2006 seasons. In the 2006 season, Mattner missed out on two games due to a calf injury. He retired midway through the 2013 AFL season, succumbing to his ongoing hip injury. He took up a coaching role with the Sydney Swans as a development coach until the end of the 2015 season. In October 2015, Mattner was announced as the head coach of Sturt. Martin Mattner is one of the few players to win a SANFL Premiership as a player, a SANFL Premiership as a coach and an AFL Premiership as a player. AFL career Mattner grew up in the tiny southeast South Australian town of Ki Ki. He attended Coomandook Area School and played some junior football with the Peake and Districts Football Club. He then sought to further develop his game and progressed to play with the Imperial Football Club in 1997, and later Sturt, until he was recruited to the Adelaide Football Club for the 2002 season, off of the rookie list. 2002–2003 Debuting with Adelaide as a 19-year-old, Mattner began his career slowly. After being elevated from Adelaide's rookie list at the start of the 2002 season, he played just seven games for the year. One of his best performances was a game against Geelong where he laid 13 tackles, a feature of his game that he had become noted for. He picked up 11 disposals in his first game, and then 13 disposals in a win over St Kilda. He averaged eight disposals a match over his seven games, and had an impressive average of just over three tackles a game. Much was the same the next year, with coach Gary Ayres displaying a tendency to not play his younger players unless a senior player was injured. He was able to