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 said his straight sets defeat to Jacob Fearnley in the first round of the Australian Open on Monday may have been his last singles match at the Grand Slam given his growing frustrations with injury.

Australia’s Nick Kyrgios has hinted that he might retire from playing singles tennis. The 29-year-old, who was once regarded as the best player in the country in the singles category, has recently returned to the court after spending nearly two years on the sidelines because of a serious wrist injury.