Alex de Minaur, the world No. 8, and Nick Kyrgios, who is back after a two-year battle with knee and wrist injuries, are the headliners for their country at Melbourne Park. Kyrgios emceed the night session on John Cain Arena Monday, before De Minaur headlines Rod Laver Arena, the pantheon of Australian tennis Tuesday night.

Nick Kyrgios has made several comments in recent months that suggest he may be closing in on retiring from tennis - the latest coming after his Australian Open defeat

After months of interminable hype and speculation, Nick Kyrgios finally made his grand return to the Australian Open. Despite having a low bar set for him after missing almost two full years, Kyrgios still laid an egg in front of his home crowd in Melbourne.