Maria Sharapova is not sure if she will be at the Australian Open next year, with a first-round exit meaning she is set to drop out of the world’s top 350.
The five-time Grand Slam champion, who won at Melbourne Park in 2008, lost 6-3 6-4 to Croatian 19th seed Donna Vekic.
It was only the Russian’s second competitive outing since September’s US Open because of a shoulder injury.
Asked whether this might be her last appearance at the tournament, she said: “I don’t know. I don’t know.”
The 32-year-old, who was given a wildcard, added: “I was fortunate to get myself to be here and thanks to [the organisers for] allowing me to be part of this event.
“It’s tough for me to tell what’s going to happen in 12 months’ time.”
This was the former world number one’s earliest exit at the Australian Open since 2010 and she has now gone out in the first round in her past three Grand Slams.
“I put myself out there. As tough as it was, I finished the match and it wasn’t the way that I wanted,” she said.
Wimbledon champion Simona Halep had to save three set points in the first set but eventually came through 7-6 (7-5) 6-1 against American Jennifer Brady.
Romanian Halep, who had her right wrist strapped after a fall in the first set, raced through the second set in 27 minutes after the opener took 69 minutes.
World number two Karolina Pliskova easily won the first set before having to work hard in the second as she beat Kristina Mladenovic to reach the second round.
The Czech took the opener in just 25 minutes on her way to a 6-1 7-5 win.
It was a tricky draw for the second seed, with Mladenovic a former top-10 player who helped France win the Fed Cup in November.
Pliskova is unbeaten in 2020, winning the Brisbane International this month.
“We had some good matches in the past and it was tough mentally in the second set,” said Pliskova, who had shared a 2-2 record against Mladenovic before this match.