Improving Jannik Sinner has his sights set on serving up more success next season - The San Diego Union-Tribune
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ATP World Tour Finals 2013: Rafael Nadal secures end of year world No 1 ranking with victory over Stanislas Wawrinka | The Independent | The Independent
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Carlos Alcaraz sets up semifinal match against Novak Djokovic at ATP Finals after beating Medvedev | The Hill
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File:2014-11-12 2014 ATP World Tour Finals show court during Marin Cilic vs Thomas Berdych match 3 by Michael Frey.jpg - Wikimedia Commons
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ATP & WTA announce new match schedule regulations to minimise late finishes; Strategic review on tennis balls underway | ATP Tour | Tennis
ATP Tour - The ATP has today announced an update to the 2021 ATP Tour calendar, outlining a revised schedule for the first seven weeks of the season. | Facebook
Novak Djokovic secures year-end top ranking for a record-extending 8th time by beating Rune at ATP Finals
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