Gauff, the 19-year-old American star, made error after error in the first set but rallied for a 3-6, 6-3, 6-0 win to advance to the round of 16.
Gauff, the 19-year-old American star, made error after error in the first set but rallied for a 3-6, 6-3, 6-0 win to advance to the round of 16.