Paris, Toronto: World No. 4 Simona Halep says she has only a “50-50” chance of being fit for the French Open after injuring her ankle during the Italian Open final last week in Rome.

The Romanian posted a composite photograph on her Instagram account showing the 25-year-old having treatment on the injury.

“Arriving early in Paris for treatment. The MRI scan shows a torn ligament from the fall in Roma,” the 2014 French Open finalist said.

“I’m keeping my fingers crossed for RG (Roland Garros) and will do everything possible to be ready. Doctors say it’s 50/50 at the moment but it’s made good improvement since Sunday.

“We are remaining very positive.” With Serena Williams, Victoria Azarenka and Maria Sharapova all absent, Halep would be one of the favourites to claim what would be a maiden grand slam crown at the May 28-June 11 tournament.

She won the title in Madrid and looked on course to follow that triumph in Rome but stumbled early in the final against Ukraine’s Elina Svitolina and went on to lose in three sets.

Maria Sharapova’s comeback from a doping ban will include an appearance at the Rogers Cup in August after the former world No. 1 was granted a wild card by the organisers of the Toronto tournament.

Sharapova returned to the court last month after serving a 15-month suspension when she tested positive for a banned substance at last year’s Australian Open and the Russian has so far been handed three wild cards to play WTA events.

The Russian reached the semi-finals of her first event back on the tour in Stuttgart but was surprisingly denied a wild card for the French Open with organisers uneasy about fast-tracking her into a tournament she has won twice.

Considered one of the biggest names in tennis, Sharapova will attempt to qualify for Wimbledon in July and has been invited to play in the Toronto event that serves as one of the main warm-up tournaments for the US Open.

Rogers Cup tournament director Karl Hale called Sharapova a “fan favourite” with the 30-year-old saying she was keen to compete at an event she last played in 2014.

“I’m really looking forward to coming back to Canada,” Sharapova told reporters. “This is one of the biggest events of the year and I hope to play my best tennis that week.”

Canada’s top female player, Eugenie Bouchard remains one of Sharapova’s fiercest critics and maintains the Russian “cheater” should have been banned for life and not welcomed back to tennis so enthusiastically.

The pair met in a feisty second round encounter in Madrid earlier this month with the 23-year-old Canadian emerging a 7-5, 2-6, 6-4 winner.