Serena Williams

Serena Williams returns to tennis after a year-long absence on Saturday, with all eyes on the former world number one as she sets out on her quest to reclaim her position at the pinnacle of her sport. The 36-year-old superstar has not played a competitive match since winning the last of her 23 Grand Slam titles at the Australian Open last year, where she was in the early stages of pregnancy. Since giving birth to her daughter Alexis Olympia in September, Williams has played only once, in an exhibition match in Abu Dhabi in December, where she lost to French Open champion Jelena Ostapenko.