Central Coast Mariners Football Club is an Australian professional soccer club based in Gosford, on the Central Coast of New South Wales. It competes in the A-League, under licence from Football Australia. The Mariners were founded in 2004 and are one of the eight original A-League teams. It is the first professional sports club from the Gosford region to compete in a national competition. Despite being considered one of the smallest-market clubs in the league, the Central Coast Mariners have claimed one A-League Championship from four Grand Final appearances and topped the table to win the A-League Premiership twice. The club has also appeared in the AFC Champions League five times.