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 is set to face her best friend Paula Badosa in the Australian Open semi-finals, aiming for a third consecutive title. Despite their friendship, Sabalenka is determined to maintain her competitive edge and join an elite group of players who have achieved consecutive wins.

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,