World number-seven Maria Sharapova has taken to Facebook to thank her fans after revealing she had failed a drugs test at the Australian Open.

Meldonium was found in Sharapova's system after her quarter-final loss to Serena Williams in Melbourne. The drug was only added to WADA's banned list at the start of the year. Sharapova claims she has used it to help with health issues since 2006. 

In a lengthy Facebook post, the 28-year-old tells her fans about her hopes to return to the court to play competitively again. "I am determined to play tennis again and I hope I will have the chance to do so. I wish I didn't have to go through this, but I do - and I will."

The Russian star faces a ban away from the game for failing the test. Her explanation of the Meldonium usage has been criticised by many but she has thanked her fans for their support since the announcement was made. 

In this moment, I am so proud to call you my fans. Within hours of my announcement, you showed me support and loyalty, which I could only expect to hear when someone would be at the top of their profession.

Sharapova's provisional ban will begin on March 12th.