Steffi Graf strongly criticises Olympic tennis rules despite easy opening win

Novak Djokovic heavily criticised Olympic tennis entry rules after a one-sided victory over Matthew Ebden in the opening round at a rainy Roland Garros.

The top seed, who is aiming to win a first Olympic gold medal, needed just 53 minutes to defeat the Australian alternate 6-0 6-1.

The rules of the event mean any players that withdraw from singles after July 19, and there have been plenty over the past few days including Andy Murray and Jannik Sinner, can only be replaced by players already competing in another event.