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Stan Wawrinka, Switzerland, during Madrid Open Tennis 2019 match. May 10, 2019. (Photo by Alberto Simon/Alter Photos/Sipa USA Stock Photo - Alamy
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Stan Wawrinka beats Jeremy Chardy in round 2 of the 2019 US Open - Official Site of the 2022 US Open Tennis Championships - A USTA Event
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Stan Wawrinka into quarterfinals after Novak Djokovic retires at 2019 US Open - Official Site of the 2022 US Open Tennis Championships - A USTA Event
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Stan Wawrinka continues his comeback at 2019 US Open - Official Site of the 2022 US Open Tennis Championships - A USTA Event
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Stan Wawrinka continues his comeback at 2019 US Open - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![2019 US Open quarterfinal preview: Daniil Medvedev vs. Stan Wawrinka - Official Site of the 2022 US Open Tennis Championships - A USTA Event 2019 US Open quarterfinal preview: Daniil Medvedev vs. Stan Wawrinka - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_USTA1180263_20190901_USO_D7_AO2_3459.jpg)
2019 US Open quarterfinal preview: Daniil Medvedev vs. Stan Wawrinka - Official Site of the 2022 US Open Tennis Championships - A USTA Event
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Swiss tennis player Stan Wawrinka playing backhand shot in French Open 2019 tennis tournament, Paris, France Stock Photo - Alamy
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