Japanese tennis player Kei Nishikori, ranked 200th, defeated Croatia's Marin Cilic (212th) 6-4, 3-6, 6-3 in the first round of the ATP 500 in Tokyo. This marks Nishikori's revenge against Cilic, who had previously won their 2014 US Open final. Nishikori will next face the winner of the match between Casper Ruud and Jordan Thompson.
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