Paula Badosa thought she might retire due to a back injury. A year later, she's in to the semifinals against close friend Aryna Sabalenka.

Aryna Sabalenka will face close friend Paula Badosa in the semi-finals of the Australian Open after battling to victory over Anastasia Pavlyuchenkova. The two-time defending champion’s 18-match winning run at Melbourne Park looked in serious danger when she lost the second set on a windy Rod Laver Arena.

Coco Gauff's retooled forehand and serve abandoned her in the worst way and at the worst time at the Australian Open. The unforced errors just kept accumulating Tuesday, and so did the double-faults and break points,