As Roger Federer prepares for his final ever event at the Laver Cup next weekend, tennis is on standby - and soon the entire sporting world will follow.
The Swiss legend has been the face of tennis for almost two decades - despite sharing the spotlight with Rafael Nadal and Novak Djokovic in recent times - and his absence from the circuit will no doubt be felt in years to come.
When the 20-time Grand Slam champion announced he was bowing out on Thursday, it transcended tennis. His retirement was felt by millions, inside and outside the world of sport.