One of the fascinating aspects of following elite athletes is seeing how they reinvent themselves throughout their careers. In sport, standing still is akin to going backwards.

The way a sport is played keeps changing, too. What worked once could quickly feel outdated. In cricket, the advent of the shorter formats began to reward risk-taking among batters and bowlers had to develop counters. Tennis evolved from the elegant, quick serve-and-volley style to long, power-packed baseline rallies, thanks to changes in racquet and string technology, slowing of surfaces and advances in athletic development.