Crowd-pleasing teenager Coco Gauff (main) came through a tough battle with qualifier Timea Babos 6-2 4-6 6-4 on Thursday to set up a third-round clash at the US Open against top seed and defending champion Naomi Osaka (right). The 15-year-old American phenom was forced to dig deep to become the youngest player since Anna Kournikova in 1996 (left) to reach the third round of the women's singles at Flushing Meadows. 'I was tested a lot. I think we both were just testing each other,' Gauff said. 'It's just that type of match where anyone could have won.'
