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Nadal on Sharapova: 'You have to respect the rules'
Fourteen-time grand slam winner Rafael Nadal says that if Maria Sharapova was negligent, she has to pay for it.
00:48 - Source: CNN
Maria Sharapova Scandal 8 videos
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Nadal on Sharapova: 'You have to respect the rules'
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- Source: CNN
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Why would athletes use meldonium?
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Maria Sharapova: I have failed a drug test
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Maria Sharapova of Russia serves in her Ladies' Singles Fourth Round match against Zarina Diyas of Kazakhstan during day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 6, 2015 in London, England.
A look back at Maria Sharapova's career
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Sharapova loses endorsements after failing drug test
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Assessing Sharapova's handling of revelation
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LONDON - JUNE 27:  Maria Sharapova of Russia serves against Nathalie Dechy of France during the seventh day of the Wimbledon Lawn Tennis Championship on June 27, 2005 at the All England Lawn Tennis and Croquet Club in London.  (Photo by Mike Hewitt/Getty Images)
Is Maria Sharapova's failed drug test career ending?
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CNN Sports Analyst: Sharapova's announcement a 'smart move'
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