Kevin Hagen/Associated Press
It would have been understandable if Coco Gauff had come out flat, deflated by a loss the previous evening on tennis’s biggest court — a match memorable less for the thumping final score than for Gauff’s tears and the comfort she received from her opponent, top-ranked Naomi Osaka.
But nothing is normal about Gauff, the preternatural teenager who has held sway over the United States Open, just as she did at Wimbledon in July.
On a warm Sunday afternoon at Louis Armstrong Stadium, Gauff once again held court. This time, though, it was a doubles match.