India, Jan. 27 -- At the start of the second set, Coco Gauff had lost 14 of the first 16 points. With a helpless look on her face, she sought help from her box. The message that came was simple: stick to hitting in the middle, don't go for winners from the get-go, build the rally.

She did just that. The focus shifted to getting the ball over the net and between the lines, play the extra ball, work the extra yard. And the points started coming her way.

Gauff, the 21-year-old two-time Grand Slam winner, was down a set and trailing 0-30, 0-3 in the second. If there was a player who could turn things around from here, it was the hard-working and resilient world No.3.

But on the other end of the court was Elina Svitolina, a player in inspir...