Pakistan, Aug. 2 -- World number two Coco Gauff battled through another tough three-setter Thursday, rallying from a set and a break down to beat Veronika Kudermetova and reach the fourth round of the WTA Canadian Open.

The top-seeded American, who won her second Grand Slam title at Roland Garros, again struggled with her serve but held her nerve for a 4-6, 7-5, 6-2 victory over former world number nine Kudermetova.

"The goal of the game is to survive and advance," Gauff said. "It's not my best, but it was good enough for today and that's all I can ask for." Gauff arrived in Montreal having lost her tournament openers at Wimbledon and Berlin in the wake of her French Open triumph. She struggled mightily in her first match in Montreal bu...