The Madison Keys who will play two-time defending champion Aryna Sabalenka for the title at the Australian Open on Saturday night is not the same Madison Keys who was the runner-up at the U.S.

By Shrivathsa Sridhar and Ian Ransom MELBOURNE (Reuters) -Defending champion Aryna Sabalenka and Madison Keys made sluggish starts on Thursday but sealed contrasting victories to set up an Australian Open final showdown that will pit two of the game's heavy hitters against each other.