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Tennis player Maria Sharapova addresses the media regarding a failed drug test at The LA Hotel Downtown on March 7, 2016 in Los Angeles, California. Sharapova, a five-time major champion, is currently the 7th ranked player on the WTA tour. Sharapova, withdrew from this week’s BNP Paribas Open at Indian Wells due to injury.  - 

Tennis superstar Maria Sharapova learned the hard way that you gotta read your emails.

Sharapova announced this afternoon she tested positive for a banned substance at the Australian Open.

Something called Mildronate, a heart medication which it turns out Sharapova had been taking since 2006. The World Anti-Doping Agency put the drug on its banned list January 1st this year.

Sharapova said she got the email, which had a link to the new list of banned substances, but she didn't click on it.

Two things: Aren't the IT experts always saying not to click on links in emails?

Also, she owned it. Took full responsibility for the mistake.

Follow Kai Ryssdal at @kairyssdal