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St. Jakobshalle, Basel, Switzerland. 26th Oct, 2019. ATP World Tour Tennis, Swiss Indoors; Stefanos Tsitsipas (GRE) serves the ball in the match against Roger Federer (SUI) - Editorial Use Credit: Action Plus
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BASEL, SWITZERALND - OCTOBER 22: Stefanos Tsitsipas (Greece) frustrated after a lost point during the ATP 500 Swiss Indoors 2019 Tennis match between Stefanos Tsitsipas and Albert Ramos-Vinolas at St. Jakobshalle Basel
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