![Jack Sock reacts to an injury during a match with Germany's Alexander Zverev in the third round of the US Open tennis championships, Saturday, Sept. 4, 2021, in New York. Zverev won Jack Sock reacts to an injury during a match with Germany's Alexander Zverev in the third round of the US Open tennis championships, Saturday, Sept. 4, 2021, in New York. Zverev won](https://c8.alamy.com/comp/2MDN16A/jack-sock-reacts-to-an-injury-during-a-match-with-germanys-alexander-zverev-in-the-third-round-of-the-us-open-tennis-championships-saturday-sept-4-2021-in-new-york-zverev-won-the-match-after-sock-withdrew-with-an-injury-ap-photofrank-franklin-ii-2MDN16A.jpg)
Jack Sock reacts to an injury during a match with Germany's Alexander Zverev in the third round of the US Open tennis championships, Saturday, Sept. 4, 2021, in New York. Zverev won
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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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