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US Open Tennis on Twitter: "Making quick work. Casper Ruud takes the first set 6-1 over Matteo Berrettini. https://t.co/KzA8PNVyy6" / Twitter
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ATP Finals 2021 - Casper Ruud sets up semi-final against Daniil Medvedev after three-set win over Andrey Rublev - Eurosport
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