British number one Johanna Konta suffered a shock defeat by world number 123 Bernarda Pera in the second round of the Australian Open.
The American won 6-4 7-5 to claim only her second win at Grand Slam level.
Ninth seed Konta had reached the quarter-finals and semi-finals on her past two visits to Melbourne Park.
"It's a bit frustrating but I'm still taking good stuff from this," Konta said. "I don't feel, by any means, it's a massive catastrophe."
"I play every event to be there until the end, so I definitely don't want to be going home this early."