Naomi Osaka had little to discuss as she faced the media at Wimbledon. Anger had given way to apathy.
The four-time major champion felt she had "nothing positive to say" after a discouraging third-round exit.
Now, less than two months later, the smile has returned to Osaka's face.
The 27-year-old former world number one seems to have rediscovered her mojo as she prepares to face Czech 11th seed Karolina Muchova in the US Open quarter-finals on Wednesday.
"Some of her tennis has been reminiscent of when she won her two titles here," said former British number one Annabel Croft, who analysed Osaka's impressive fourth-round win over third seed Coco Gauff for BBC Radio 5 Live.