Nick Kyrgios says he is good for tennis and the sport will get a boost from his return to Grand Slam action at the Australian Open.

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.

There have still been plenty of words written about Kyrgios while he was away from the tour, especially regarding his outspoken criticism of world number one Jannik Sinner over two failed doping tests.

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.

Mats Wilander believes Nick Kyrgios has the capability of causing a 'big upset' in the Australian Open, but has raised concerns about the Aussie star's fitness. Kyrgios' first-round match against Jacob Fearnley next week will be his first match in a major tournament in over two years.