Jannik Sinner, shortly before Wimbledon, ended his partnership with physio Ulises Badio and fitness trainer Marco Panichi.

The 22-year-old Spaniard has charmed the world with his compulsive tennis. Can he keep winning and stay true to his spirit?

Daniil Medvedev is known for often engaging in antics during challenging matches, and he did so again after slipping to a ...