American Coco Gauff progressed to the last 16 at the Miami Open with a straight-set win over Oceane Dodin.
US Open champion Gauff fell a break of serve behind and trailed 4-2 in the opening set.
But the 20-year-old produced an emphatic response, winning the next 10 games without reply to seal victory in just over an hour.
Third seed Gauff awaits French 23rd seed Caroline Garcia or Japan's four-time major winner Naomi Osaka.
Elsewhere in the women's draw, American fifth seed Jessica Pegula beat Canada's Leylah Fernandez 7-5 6-4 to set up a meeting with 22-year-old compatriot Emma Navarro.