form from Mattner while he has started the 2011 season in as strong form as has been seen from him at the club. Mattner has only missed one game in his time at the Sydney Swans, that being round 15, 2010 against North Melbourne. 2011 was one of Mattner's most consistent years in the AFL. He didn't see as much ball rebounding from the back half but, as a pure defender, he produced some of his best football. Mattner played his 200th AFL game in round 9, 2012, against . The milestone was overshadowed by Lenny Hayes playing his 250th AFL game for the Saints in the same match, as the Swans lost by 28 points. He went on to play in the Swans' side that won the club's fifth premiership with a victory over . He played an important role in the team, including a ferocious run down tackle on Hawthorn's Grant Birchall in the dying minutes. 2013 Mattner played the first seven rounds of the season in reasonable form however was sidelined for 3 rounds midway through the season. Just prior to round 11, Mattner announced his retirement effective immediately, due to a degenerative hip condition that had caused him constant pain for several years. Mattner stated that to continue playing football would aggravate the injury and could lead to a life of crippling pain. Coaching career Mattner became the senior coach of Sturt in the South Australian National Football League (SANFL) in 2016. After finishing eighth out of ten in 2015, Sturt won the premiership in his first season as coach, and won its second consecutive premiership in 2017. Mattner joined the Adelaide Football Club post 2018 SANFL season with Sturt and took up an assistant role, Mattner will be in charge of the defenders with Adelaide. After departing Adelaide in 2020 due to reduction in coaching panel sizes, Mattner successfully returned as the coach of the Sturt Football Club in 2021. Statistics |- style="background-color: #EAEAEA" ! scope="row" style="text-align:center" | 2002 |style="text-align:center;"| | 39 || 7 || 0 || 1 || 32 || 22 || 54 || 10 || 22 || 0.0 || 0.1 || 4.6 || 3.1 || 7.7 || 1.4 || 3.1 |- ! scope="row" style="text-align:center" | 2003 |style="text-align:center;"| | 39 || 10 || 1 || 2 || 51 || 38 || 89 || 17 || 26 || 0.1 || 0.2 || 5.1 || 3.8