Tennis sensation Novak Djokovic has become that rare thing on the court—invincible. Vicki Woods catches up with the sport's newest superstar.

Every other day at Wimbledon has brought an opportunity to compare the greatest player in men's tennis and one of his heirs.

Novak Djokovic, visibly struggling with physical issues stemming from a previous fall, lost his Wimbledon semi-final match against Jannik Sinner. The seven-time champion acknowledged the challenges of competing against younger,