Novak Djokovic’s serve mastery keeps more tennis history in his sights

Novak Djokovic, aged 39, is competing at Wimbledon with a chance to win a record 25th Grand Slam title. He has adapted his game in recent years by improving his serve and adopting a more aggressive, first-strike style of tennis to conserve energy. Djokovic defeated No. 25 seed Arthur Rinderknech in the third round, though he conceded the third set after falling 4-0 down.