Twenty-four-time Grand Slam champion Novak Djokovic called 44-year-old Serena Williams' Wimbledon comeback "truly inspirational". "What she's doing is inspirational, and it's epic. That's what I told her...I always admired her career, her journey [and] her story," he said. Williams, a seven-time Wimbledon singles champion, will play at the All England Club for the first time in four years.