Nick Kyrgios hinted on Monday that his straight-sets loss in the first round of the Australian Open may be his final singles match in his home country's Grand Slam event.

Nick Kyrgios is making his long-awaited to return to the tennis circuit after playing only one professional match since October 2022. Wrist and knee injuries have robbed the enigmatic Aussie - and the thousands that watch him - of some of the prime years in his career.

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.

The 29-year-old has endured a wretched run of injuries and was hampered by an abdominal issue on Monday night. Fans packed John Cain Arena to get a glimpse of Kyrgios playing his first grand slam since the US Open in 2022, and the Aussie had plenty of home support.

If this was the last Australian Open singles match of Nick Kyrgios' career — and, to be sure, it's hard to know with him, no matter what came out at his news conference — the big-hitting, big-talking tennis player went out rather quietly Monday night.

Nick Kyrgios admitted after his first round straight sets defeat that it might have been his last Australian Open singles match.