Cincinnati: Coco Gauff suffers shock loss, Aryna Sabalenka sets up R16 showdown

Coco Gauff's Cincinnati title defense came to an end very early as the American tennis star got upset by Yulia Putintseva, while Aryna Sabalenka made a winning start. No. 2 seed Gauff, who won her first WTA 1000 title in Cincinnati last year, had a first-round bye at the tournament this year before suffering a shock 4-6 6-2 6-4 loss to 33rd-ranked Putintseva in her opening match. For Gauff, this was yet another disappointing result after failing to win a medal at the Paris Olympics - l