Among those tipped to challenge Djokovic for the Norman Brookes Challenge Cup is Carlos Alcaraz, who won the French Open and Wimbledon last year. At 21 years and 266 days on the day of the men’s singles final, Alcaraz could become the youngest male player of all-time to achieve the career grand slam.

It will be all business when Andy Murray coaches Novak Djokovic at the Australian Open. While the partnership between two of the biggest rivals in recent men’s tennis history has awakened feelings of shock,