Ash Barty and Novak Djokovic headline a stellar player field set to compete at Melbourne Park for Australian Open 2022, the first grand slam event of the season, but two of the sports biggest names are noticeably absent.World No 41 Serena Williams will not contest the womens draw, with the seven-time Australian Open champion withdrawing on advice from her medical team. On the mens side, 16th-ranked Roger Federer is out as
