PARIS—A year ago, Naomi Osaka left the French Open of her own volition, never beaten on the court but determining that she needed to pull out before the second round to stand up for herself and protect her mind.
On Monday, Osaka departed Roland Garros against her will—via a 7–5, 6–4 loss in the first round to 20-year-old American Amanda Anisimova, who is seeded 27th and also won their contest at the Australian Open in January—after taking a painkiller to try to deal with a troublesome left Achilles tendon. She tried to stretch the tendon by tugging on her neon yellow shoes at changeovers or by squatting to flex her lower leg between points….