Coco Gauff battled from a set down under the lights as the US Open served up a thriller on opening night.
Carlos Alcaraz and Iga Swiatek, the current world number ones, will bid to defend their US Open titles they won last year, but a host of rivals will be out to dethrone them.
Coco Gauff claimed her third tournament win of the season with victory over Karolina Muchova in the Southern and Western Open final on Sunday.
Coco Gauff scrapped her way to a maiden win over world number one Iga Swiatek to reach her first WTA 1000 final at the Southern and Western Open in Cincinnati.
Coco Gauff fell at the first hurdle at Wimbledon after going down to fellow American Sofia Kenin in a bruising contest on Court One.
Madison Keys shrugged off an injury scare to progress to her second Eastbourne final by upsetting fellow American Coco Gauff with a straight-sets win at the Rothesay International.