US Open: Teenager Leylah Fernandez stuns Angelique Kerber to reach quarter-finals

US Open: Teenager Leylah Fernandez stuns Angelique Kerber to reach quarter-finals https://ift.tt/eA8V8J Canadian teenager Leylah Fernandez continues her remarkable US Open run as she beats 2016 champion Angelique Kerber to reach the quarter-finals.