In her last Grand Slam quarterfinal, the Spaniard fell apart in New York. She took the lessons to Gauff in Melbourne, and won.

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 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.