Coco Gauff’s fast start to the year came to an end at the Australian Open as she fell to a 7-5, 6-4 quarterfinal defeat against Paula Badosa.

Coco Gauff has lost in the Australian Open quarterfinals to Paula Badosa 7-5, 6-4 MELBOURNE, Australia — Coco Gauff's retooled forehand and serve abandoned her in the worst way and at the worst time at the Australian Open .

Coco Gauff of the U.S. reacts during her quarterfinal match against Paula Badosa of Spain during their quarterfinal match at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan.

Coco Gauff sees her 13-match winning streak come to an end in a 7-5, 6-4 loss to Paula Badosa in the quarterfinals of the Australian Open.

No. 3 Coco Gauff was upset in the Australian Open quarterfinals by No. 11 Paula Badosa. What happened? We break it down.