The Aussie captain, who plays for Pune Warriors India in the T20 tournament, is also a doubt for the Champions Trophy in England in June.
Melbourne: Cricket Australia says injured captain Michael Clarke is expected to be sidelined for up to 10 weeks, making him unavailable for the Indian Premier League and doubtful for the Champions Trophy in England.
Clarke, who plays for Pune Warriors India, withdrew from the fourth Test against India last week, with Australia already trailing 3-0 in the four-match series.
CA said medical scans Tuesday confirmed the lower back injury was related to previous spinal issues and the problem needed to be managed to avoid serious consequences.
CA's chief medical officer Justin Paolini said he was confident the injury will not affect Clarke's preparations for the Ashes series in England starting in July.