Coco Gauff loses lead, match against Potapova at Miami Open

MIAMI GARDENS, Fla. — Coco Gauff let a big lead slip away and wound up dropping the last five games of a mistake-filled 6-7 (8), 7-5, 6-2 loss to Anastasia Potapova in the third round of the Miami Open on Saturday. The No. 6-seeded Gauff, a 19-year-old from nearby in Florida, heard chants of “Let’s go, Coco!” from spectators at the hard-court tournament as she overcame a 5-2 deficit in the opening set, then erased a pair of set points for Potapova in that tiebreaker. Gauff grabbed the set on...