Naomi Osaka is a role model

Self-care: When Osaka realised that her mind had become a dark place, she decided to take care of it.

GOLF is a game of inches, said Arnold Palmer, one of the sport’s greatest players. He added: “The most important are the six inches between your ears.”

The same is true of tennis, and indeed almost any sport, not to mention the rest of life. Athletes may spend most of their time cultivating their bodies. But the wise ones know that what matters most is the mind.