Yes, Aryna Sabalenka is the heavy favorite to win her third straight Australian Open title, but Madison Keys is playing lights-out tennis. Here's why she can pull off the upset.

Aryna Sabalenka will face close friend Paula Badosa in the semi-finals of the Australian Open after battling to victory over Anastasia Pavlyuchenkova. At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.