After taking out defending champion Naomi Osaka in the third round, Canadian Leylah Fernandez continued her remarkable US Open run with a 4-6 7-6(5) 6-2 victory over 2016 title winner Angelique Kerber to make the quarterfinals.
The teenager proved that her upset of Osaka was no fluke. The unseeded left-hander worked her way back from a 4-2 deficit in the second set, edged the tiebreak and took the last five games of the match to see off Kerber, who entered the match with more Grand Slam and US Open match wins than any other player in the draw.