Teenage phenomenon Coco Gauff missed out on her first Grand Slam quarter-final as fellow American Sofia Kenin fought back to win in the Australian Open fourth round. Gauff, 15, lost 6-7 (5-7) 6-3 6-0 to the 14th seed in Melbourne. She showed all her undoubted quality in the first set, but tired in the third as Kenin wore her down. ...
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