High Quality Content by WIKIPEDIA articles! The knockout stage of 2012 Indonesia Super League U-21 is scheduled to begin on 28 June 2012 and to be completed on 1 July 2012 with the final at the Kanjuruhan Stadium in Malang Regency. After the completion of the group stage on 23 June 2012, four teams qualified for the semi-finals (two from each group), which are to be played from 28 June 2012. Host clubs Arema FC U-21 failed to qualify for the semi-finals.