Maria Sharapova has announced that she tested positive during the Australia Open in January for meldonium, a recent addition to the International Tennis Federation’s banned substance list.
“I wanted to let you know that, a few days ago, I received a letter from the ITF that I had failed a drug test at the Australian Open,” a somber Sharapova announced after thanking those assembled for gathering on such short notice.
“I did fail the test and I take full responsibility for it. For the past 10 years I have been given a medicine called Mildronats by my doctor–by my family doctor–and after I got the letter from ITF I found out it also has another name, of meldonium,” E! News reports.
Meldonium is not approved by the FDA but is used in Sharapova’s native Russia, commonly used to treat heart disease.
Sharapova hasn’t played since losing to Serena Williams at the U.S. Open quarterfinals.