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April 01, 2018: John Isner of the United States returns to Alexander Zverev of Germany in the men's single championship final of the 2018 Miami Open presented by Itau professional tennis tournament,
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April 01, 2018: John Isner of the United States serves to Alexander Zverev of Germany in the men's single championship final of the 2018 Miami Open presented by Itau professional tennis tournament,
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