Azarenka leads 5-4 in career matches, including the last four times they've played.
‘‘I'm really hungry to defend my title,’’ said Azarenka, who needs to beat Li to retain her No. 1 ranking. ‘‘I've put myself in the position to give it the best shot.’’
Also on Saturday, American brothers Bob and Mike Bryan will play their fifth consecutive Australian Open doubles final and attempt to win their record 13th Grand Slam doubles championship. They'll play the Dutch pair of Robin Haase and Igor Sijsling.