Retired athletes voiced their support for four-time Grand Slam winner Naomi Osaka after she said she would take a break from tennis having lost her enthusiasm for competition.

The world No.3 suffered a stunning defeat in the third round of the US Open on Friday, before tearfully telling reporters she planned to take an indefinite break from the sport.

“I feel recently, when I win I don’t feel happy. I feel more relief,” said Japan’s Osaka, months after publicly disclosing that she had suffered from depression...