Kim Clijsters knocked out of the Malaysian Open by Jelena Dokic . It is the third time Dokic has beaten a top- three ranked player since Kim Clijsters in a fine month . Top seed Schiavone has now lost to Juan Martin del Potro in all three of their encounters . Del Potro , now 89th in the world , dropped as low as 485 in the rankings after suffering a serious wrist injury in 2010 . Juan Martin del Potro beat Janko Tipsarevic to claim the Delray Beach Championships .
Kim Clijsters knocked out of the Malaysian Open by Jelena Dokic . It is the third time Dokic has beaten a top- three ranked player since Kim Clijsters in a fine month . Top seed Schiavone has now lost to Juan Martin del Potro in all three of their encounters . Juan Martin del Potro beat Janko Tipsarevic to claim the Delray Beach Championships .