![Michal Samulski on Twitter: "Roger Federer's practice session (with Philipp Kohlschreiber) at TC Weissenhof in Stuttgart. @MercedesCup (pic.) https://t.co/GNZD41bRKD" / Twitter Michal Samulski on Twitter: "Roger Federer's practice session (with Philipp Kohlschreiber) at TC Weissenhof in Stuttgart. @MercedesCup (pic.) https://t.co/GNZD41bRKD" / Twitter](https://pbs.twimg.com/media/DfWJc05XUAET_z1.jpg)
Michal Samulski on Twitter: "Roger Federer's practice session (with Philipp Kohlschreiber) at TC Weissenhof in Stuttgart. @MercedesCup (pic.) https://t.co/GNZD41bRKD" / Twitter
![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. 11th June, 2016. Roger Federer from Switzerland in action against Fritz from the US during the ATP Tournament at Weissenhof in Stuttgart, Germany, 11 June 2016. PHOTO: MARIJAN MURAT/dpa/Alamy Live Stuttgart, Germany. 11th June, 2016. Roger Federer from Switzerland in action against Fritz from the US during the ATP Tournament at Weissenhof in Stuttgart, Germany, 11 June 2016. PHOTO: MARIJAN MURAT/dpa/Alamy Live](https://c8.alamy.com/comp/G3FNYT/stuttgart-germany-11th-june-2016-roger-federer-from-switzerland-in-G3FNYT.jpg)
Stuttgart, Germany. 11th June, 2016. Roger Federer from Switzerland in action against Fritz from the US during the ATP Tournament at Weissenhof in Stuttgart, Germany, 11 June 2016. PHOTO: MARIJAN MURAT/dpa/Alamy Live
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