![Wimbledon, UK. 10th July, 2019. Roger Federer of Switzerland and Kei Nishikori of Japan walk on to the court prior to the men's singles quarter-final match of the Wimbledon Lawn Tennis Championships Wimbledon, UK. 10th July, 2019. Roger Federer of Switzerland and Kei Nishikori of Japan walk on to the court prior to the men's singles quarter-final match of the Wimbledon Lawn Tennis Championships](https://c8.alamy.com/comp/W2TWC6/wimbledon-uk-10th-july-2019-roger-federer-of-switzerland-and-kei-nishikori-of-japan-walk-on-to-the-court-prior-to-the-mens-singles-quarter-final-match-of-the-wimbledon-lawn-tennis-championships-at-the-all-england-lawn-tennis-and-croquet-club-in-london-england-on-july-10-2019-credit-afloalamy-live-news-W2TWC6.jpg)
Wimbledon, UK. 10th July, 2019. Roger Federer of Switzerland and Kei Nishikori of Japan walk on to the court prior to the men's singles quarter-final match of the Wimbledon Lawn Tennis Championships
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Switzerland's Roger Federer and Japan's Kei Nishikori before the Barclays ATP World Tour Finals at The O2 Arena, London Stock Photo - Alamy
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ATP Finals: Roger Federer gets back to winning ways to keep his London hopes alive | The Independent | The Independent
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