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O2 Arena, London, UK. 16th November 2018, O2 Arena, London, England; Nitto ATP Tennis Finals; Alexander Zverev (GER) signs autograph for his fans before the Credit: Action Plus Sports Images/Alamy Live News
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O2 Arena, London, UK. 16th November 2018, O2 Arena, London, England; Nitto ATP Tennis Finals; General
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ATP World Tour Finals will be staying in London after contract is extended | ATP World Tour Finals | The Guardian
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