American Coco Gauff overcame late nerves to beat Greek Maria Sakkari 7-6(1) 6-2 and reach the last 16 at Indian Wells on Monday, as her compatriot Madison Keys held off Belgian Elise Mertens 6-2, 6-7(8), 6-4. Third seed Gauff was in fine form until the final game, where she produced six double faults before closing it out on her sixth match point. She will next play Swiss Belinda Bencic. "Except the last game I thought I played a great match. Just trying to look at the positives," Gauff said