
Sofia Kenin's Australian Open defence has ended with a whimper after Kaia Kanepi ousted the American in straight sets.
Kanepi was on the front foot from the outset and never seriously looked troubled by the fourth seed in a 6-3 6-2 second-round rout on Thursday.
Kenin beat Ash Barty in last year's semi-final and her exit further opens the door for the world No.1 to claim an elusive grand slam title on home soil.