Nike suspends Maria Sharapova deal after she admits to failing drug test

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Tennis player Maria Sharapova addresses the media 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.

Nike is suspending its major endorsement deal with Russian tennis star Maria Sharapova after she admitted to failing a drug test at this year’s Australian Open.

Sharapova, who has long been the world’s highest-paid female athlete, said Monday she’d been taking the drug meldonium since 2006 and didn’t realize it was declared a banned substance by the World Anti-Doping Agency at the start of 2016.

“We are saddened and surprised by the news about Maria Sharapova,” Nike said in a statement. “We have decided to suspend our relationship with Maria while the investigation continues.”

It’s not the only brand suddenly distancing itself from the the five-time grand slam winner. Swiss luxury watchmaker Tag Heuer said Tuesday it has halted talks with her over the possibility of renewing a contract that expired at the end of last year.

The International Tennis Federation said it is provisionally banning Sharapova “pending determination of the case.” The usual penalty for first-time offenders is a two-year ban.

Meldonium is designed to improve the flow of blood around the body, and is often used to treat heart issues. It can also improve patients’ moods and make them become more active, according to the U.S. National Library of Medicine.

Sharapova said she began taking the drug for a magnesium deficiency and irregular EKGs, which can signal problems with the heart’s electrical activity. Her family also has a history of diabetes, she added.

The 28-year-old Russian star is the latest high-profile athlete to create a public relations headache for Nike. Last month, the company dropped the boxing champion Manny Pacquiao after he made offensive comments about gay people.

The company has cut ties with other scandal-hit international stars, like Oscar Pistorius and Lance Armstrong. But it famously kept its contract with golfer Tiger Woods after accounts of his infidelity made the news.

Sharapova has deep ties with Nike, which has a whole collection of tennis clothing tied to her name. Her current eight-year deal with the company is reported to be worth $70 million.

In an interview with CNN in August, she said she had been in partnership with Nike since she was 11 years old.

“I came from having to cut my T-shirts because there was not a junior line at the time and rolling up my skirts to now being able to design my on-court looks for Nike,” Sharapova said. “And that involvement and that relationship has really evolved.”