relegated to the second and so on. This new league was created to introduce full professionalism in Indonesian football. In parallel with this league, U-21 teams from each participating ISL clubs compete in the ISL U-21. In 2011, PSSI replaced the ISL with the Indonesian Premier League (IPL). After the extraordinary congress on 17 March 2013, Premier League and Super League are in PSSI supervision prior to incorporation in 2014 under the name of Indonesia Super League. Before that the two leagues were still running, respectively. In 2014, PSSI divided into four level leagues competition include Super League, Premier Division, First Division and Amateur League/Province League called Liga Nusantara. Started in 2015 league planned just divided into three level leagues competition include Super League, Premier Division and Liga Nusantara, after first division merged with Liga Nusantara. In 20 January 2017, PSSI announced to replace three previous league (Super League, Premier Division and Liga Nusantara) with three new leagues, namely the Liga 1, Liga 2 and Liga 3. Competition format From the 1994–1995 to 2004–2005 season, Liga Indonesia's structure changed almost every year. For some seasons, there were two divisions within the top flight; for others, there were three. The number of clubs in the top flight wavered from 18–28, and seasons would last from 34–38 games. The top four clubs in each division qualified for a group stage "Final Eight Championship Playoff." Winners of the group faced off for the championship. During the 2004–2005 season, 18 clubs comprised the Indonesian top flight. A season lasted 34 games, in which each club played against each other on a home-and-away basis. The three teams at the bottom of the table are relegated into Division Satu, the second level of the Indonesian league system, while the three teams of Division Satu that won promotion replace them. The top two finishers in the league qualify for the AFC Champions League. Starting with the 2003–2004 season, the championship was decided a double round-robin league system involving the top clubs of each division. Beginning with the 2005–2006 season, 28 clubs will comprise Liga Indonesia. Clubs compete in two divisions of 14 clubs each. Each club plays against each other on a home-and-away basis. The league's popularity has grown so much that the 2006–2007 season will see another big expansion of the league from 28 to 36 clubs with both divisions comprising 18 clubs each. In 2008,