SAM Stosur faces an uncertain future after a mystery hand injury sabotaged her French Open dreams.

The 33-year-old said she was unable to use her twin strengths - serve and forehand - to full effect after the sixth game of the first set in a 2-6 6-2 6-4 loss to Jelena Ostapenko.

"My hand's been sore for about three or four days since the day I played doubles here," Stosur said.

"Don't know what's wrong with it.


"From 5-1 in that first set, it was just really, really painful and just, yeah, wasn't going away. So yesterday I barely hit and just tried to manage it.

"And, yeah, just tried to get through and did everything I could, but she started playing pretty well as well, so it made life extra hard.

"It's just every time I impact or grip my racquet, swing it on that side, it's just been really, really sore."

Stosur was frustrated at not being able to employ her lethal serve-forehand combination.

"Every forehand and then started to hurt my serve," she said in response to questions over which strokes were compromised.

"And pretty much the only thing I could hit without too much pain was my topspin backhand.

"Towards the end, I started hitting backhands on purpose and that's obviously not the way that I normally play.

"And then last game just thought 'Okay, no matter what, I'm going to do everything I can to play the way I need to be playing' and see what happens."

Stosur said scans failed to identify the source of the problem.

"I had an ultrasound the other day. Nothing really showed up," she said.

"But I've got to go get some sort of scan either tonight or tomorrow and find out what it is. Because it hasn't got better at all since it started."

Stosur surrendered the Australian No 1 ranking to Daria Gavrilova as a result of the loss and probably won't be seeded at Wimbledon - if she is able to play.

Almost untouchable during eight straight wins, a sequence which included a surge to the Strasbourg title, Stosur said she was proud to have held the No 1 mantle for so long.

"Look, that's something to be really proud of," she said.

"It's a really long time obviously and ... yeah, just something to be really proud off. So Dasha can take it right now and we'll see where things lie."

News Corp Australia

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