Coco Gauff lost to Spain’s Paula Badosa on Tuesday in the Australian Open. After back problems that saw her fall in the rankings from No. 2 to No. 140, the Spanish player’s determination halted Gauff’s hot streak.

SPAIN'S Paula Badosa has made it to a Grand Slam semi-final for the first time after a shock quarter-final win over third-seeded Coco Gauff in the

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,