![Stuttgart, Germany. 13th June, 2018. Roger Federer of Switzerland returns a shot during the singles second round match against Mischa Zverev of Germany at the ATP Mercedes Cup tennis tournament in Stuttgart, Stuttgart, Germany. 13th June, 2018. Roger Federer of Switzerland returns a shot during the singles second round match against Mischa Zverev of Germany at the ATP Mercedes Cup tennis tournament in Stuttgart,](https://c8.alamy.com/comp/P215C8/stuttgart-germany-13th-june-2018-roger-federer-of-switzerland-returns-a-shot-during-the-singles-second-round-match-against-mischa-zverev-of-germany-at-the-atp-mercedes-cup-tennis-tournament-in-stuttgart-germany-june-13-2018-federer-won-2-1-credit-philippe-ruizxinhuaalamy-live-news-P215C8.jpg)
Stuttgart, Germany. 13th June, 2018. Roger Federer of Switzerland returns a shot during the singles second round match against Mischa Zverev of Germany at the ATP Mercedes Cup tennis tournament in Stuttgart,
![Stuttgart, Germany. 15th June, 2018. Mercedes Cup Tennis ATP Tour, Men's singles, Roger Federer (SUI). Credit: Action Plus Sports/Alamy Live News Stock Photo - Alamy Stuttgart, Germany. 15th June, 2018. Mercedes Cup Tennis ATP Tour, Men's singles, Roger Federer (SUI). Credit: Action Plus Sports/Alamy Live News Stock Photo - Alamy](https://c8.alamy.com/comp/P2G74P/stuttgart-germany-15th-june-2018-mercedes-cup-tennis-atp-tour-mens-singles-roger-federer-sui-credit-action-plus-sportsalamy-live-news-P2G74P.jpg)
Stuttgart, Germany. 15th June, 2018. Mercedes Cup Tennis ATP Tour, Men's singles, Roger Federer (SUI). Credit: Action Plus Sports/Alamy Live News Stock Photo - Alamy
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Stuttgart, Germany 11. -17. June 2018: Mercedes Cup - Stuttgart - 2018 Roger Federer (SUI) vs, Stock Photo, Picture And Rights Managed Image. Pic. PAH-105713431 | agefotostock
![Denis Istomin (UZB). GES / Tennis / ATP: MercedesCup, 15.06, Stock Photo, Picture And Rights Managed Image. Pic. PAH-105634555 | agefotostock Denis Istomin (UZB). GES / Tennis / ATP: MercedesCup, 15.06, Stock Photo, Picture And Rights Managed Image. Pic. PAH-105634555 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/fc5658d418dc0dd4aa3309c21c5f098e/pah-105634555.jpg)
Denis Istomin (UZB). GES / Tennis / ATP: MercedesCup, 15.06, Stock Photo, Picture And Rights Managed Image. Pic. PAH-105634555 | agefotostock
![Mercedes Cup 2018: Roger Federer reaches semis in Stuttgart, one win away from reclaiming World No. 1 Mercedes Cup 2018: Roger Federer reaches semis in Stuttgart, one win away from reclaiming World No. 1](https://staticg.sportskeeda.com/editor/2018/06/b5707-1529073653-800.jpg)
Mercedes Cup 2018: Roger Federer reaches semis in Stuttgart, one win away from reclaiming World No. 1
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Stuttgart, Deutschland. 17th June, 2018. Winner Roger Federer (SUI). GES/ Tennis/ATP: MercedesCup, 17.06.2018 Tennis ATP: MercedesCup, Stuttgart, June 17, 2018 - | usage worldwide Credit: dpa/Alamy Live News Stock Photo - Alamy
![Mercedes Cup 2018: Roger Federer back to World No. 1 ranking after beating Nick Kyrgios in a tight semi-final Mercedes Cup 2018: Roger Federer back to World No. 1 ranking after beating Nick Kyrgios in a tight semi-final](https://staticg.sportskeeda.com/editor/2018/06/dbc70-1529167852-800.jpg)