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Jack Sock stuns world No 3 Alexander Zverev to make history at the ATP Finals | The Independent | The Independent
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American Jack Sock Wins Rollercoaster Against Alexander Zverev To Reach Semi-finals at Nitto ATP Finals | ATP Tour | Tennis
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2017 US Open Spotlight: Jack Sock - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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Despite His Doubles Prowess, Kansas City Tennis Star Jack Sock Wants To Stick With Singles | KCUR - Kansas City news and NPR
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