Five-time Grand Slam winner Maria Sharapova has announced she failed a drugs test at this year's Australian Open.
The 28-year-old Russian made the shocking revelation at a pre-arranged press conference in Los Angeles, on Monday.
Sharapova, who has played in only one tournament this year, losing to Serena Williams in the quarter-finals of the Australian Open, said she received a letter from the ITF informing her of the failed test for meldonium - a substance which has been on the banned list since January 1, 2016.
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