Novak Djokovic has hit out at suggestions his time is up following Sunday’s Wimbledon final defeat to Carlos Alcaraz. The Serb crashed to defeat at Centre Court, with Alcaraz winning 6-2, 6-2, 7-6 (7-4) to secure a fourth Grand Slam title of his short career. With Alcaraz winning the French Open before Wimbledon, the 21-year-old is the man to beat. He is the favourite for the US Open, which is set to take place later in the year. Some feel Djokovic is now a faded force in the aftermath of his defeat. He is yet to win a Grand Slam in 2024 and, if he fails to triumph at Flushing Meadows, will en…