Tennis-Djokovic still the man but youngsters knocking on the door

Tennis - Davis Cup Finals - Semi Final - Serbia v Italy - Palacio de deportes Martin Carpena, Malaga, Spain - November 25, 2023 Serbia's Novak Djokovic reacts during his doubles match with Miomir Kecmanovic against Italy's Lorenzo Sonego and Jannik Sinner REUTERS/Jon Nazca/File photo

(Reuters) - Novak Djokovic tightened his iron grip on men's tennis in 2023 but fans got another glimpse of the sport's future flagbearers as Carlos Alcaraz stopped the Serb from sweeping the Grand Slams and Jannik Sinner landed a late blow.

Playing some of his best tennis at 36, and having crossed a record 400 weeks at the top of the world rankings, Djokovic is primed to push for a Golden Slam of winning all four majors and the Olympic crown in Paris next year.