Russian tennis star Maria Sharapova has followed through on her promise to appeal a two-year ban for using a banned substance during the Australian Open in January.
Last week the 29-year-old was suspended by the International Tennis Federation.
She had previously argued that she had been taking Meldonium for ten years.
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Now the Court of Arbitration for Sport has confirmed Sharapova wants to overturn or reduce the suspension.
The court is due to decide on the matter by July 18. She is pushing to have the matter resolved so she can compete at the Rio Olympics in August.
As it stands Sharapova is banned until 26 January 2018, ruling her out of the next seven grand slam events.