Tennis

Which of the following is considered bad tennis etiquitte?

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In 2003, Roger Federer defeated which Australian to win his first Grand Slam?
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Who was the runner-up in tennis' 2001 Australian Open Singles Championship?
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Who was the runner-up in the 2001 U.S. Open Singles Championship?
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Which player defeated Simona Halep in the 2014 French Open final to claim her second French Open title?
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In which year did Nicolas Kiefer win the Australian and U.S. Open Junior's tournaments?
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Who won the 2009 Hamburg European Open?
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Who won the 1982 U.S. Open Singles Championship in tennis?
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How many points does "love" represent?
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