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.

A Grand Slam or Major tournament is the highest-tier event in tennis. It starts with the Australian Open in January, then the French Open in June, Wimbledon in July, and finally the US Open in September.