![Alexander Zverev advances as Jack Sock retires at 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event Alexander Zverev advances as Jack Sock retires at 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://usopenvideo-a.akamaihd.net/2021/A_Zverev_vs_J_Sock_Match_Highlights_2_thumbnail_1280x720.jpg)
Alexander Zverev advances as Jack Sock retires at 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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Novak Djokovic earns chance at tennis history with gutsy five-set US Open semi-final win over Alexander Zverev
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H2H, PREDICTION Alexander Zverev vs Jack Sock | U.S. Open odds, preview, pick - Tennis Tonic - News, Predictions, H2H, Live Scores, stats
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US Open 2021 - 'I would have been planning my holiday' - Alexander Zverev relieved by Jack Sock retirement - Eurosport
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Photos: Alex Zverev vs Jack Sock at the 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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Jack Sock stuns world No 3 Alexander Zverev to make history at the ATP Finals | The Independent | The Independent
![Photos: Alex Zverev vs Jack Sock at the 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event Photos: Alex Zverev vs Jack Sock at the 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_20210904_USO_Day6_PS6_1025.jpg)
Photos: Alex Zverev vs Jack Sock at the 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![Alexander Zverev advances as Jack Sock retires at 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event Alexander Zverev advances as Jack Sock retires at 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_20210904_USO_Day6_PS6_0847.jpg)
Alexander Zverev advances as Jack Sock retires at 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![Photos: Alex Zverev vs Jack Sock at the 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event Photos: Alex Zverev vs Jack Sock at the 2021 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_20210904_USO_Day6_PS6_0790.jpg)