Osaka, who has been a picture of composure on the court win- or-lose throughout her career, erupted in frustration during a 5-7 7-6 (2) 6-4 loss to 18-year-old Canadian Leylah Fernandez that ended her U.S. Open title defence.
The four-time Grand Slam champion, who quit the French Open earlier this year after saying she would not attend press conferences for her mental health, did not try to dodge the media on Friday thoughtfully answering questions until breaking into tears.
"Basically I feel like I'm kind of at this point where I'm trying to figure out what I want to do," said Osaka, wiping away a tear. "I honestly don't know when I'm going to play my next tennis match.
She added, "I think I'm going to take a break from playing for a while."