Grand Slam winners' checks are some of the richest in the sport, but proportionally the players get a rawer deal than their counterparts.

Defending singles champions Jannik Sinner and Aryna Sabalenka will begin their campaigns with easy first-round fixtures at Melbourne Park while the 10-time champions Novak Djokovic will take on Nishesh Basavareddy in his first match on Monday.

Nick Kyrgios faces another injury setback in his planned return to Grand Slam tennis at the Australian Open after an abdominal strain forced him to withdraw from an exhibition with Novak Djokovic this week.