Andy Murray says there is a "definite possibility" he has played his final Australian Open after a subdued display against Tomas Martin Etcheverry in a first-round exit.
The 36-year-old Briton showed little emotion as he lost 6-4 6-2 6-2 on the second day of the Melbourne tournament.
Murray, a five-time finalist, failed to reach the second round for only the second time in his past 13 appearances.
"I won't win many matches playing that way," Murray said.
"It's a definite possibility that will be the last time I play here."
After conceding in pre-season that 2024 could be his final season before retirement, the Scot has lost both of his matches this year.