![Alexander Zverev of Germany celebrates in his half final match... | Alexander zverev, Tennis players, Tennis world Alexander Zverev of Germany celebrates in his half final match... | Alexander zverev, Tennis players, Tennis world](https://i.pinimg.com/474x/cb/87/a7/cb87a71e94d7c1f46f727a5e38a4effa.jpg)
Alexander Zverev of Germany celebrates in his half final match... | Alexander zverev, Tennis players, Tennis world
![Roger Federer of Switzerland reacts during the semifinal match against Alexander Zverev of Germany at the Gerry Weber Open ATP tennis tournament in Halle,Germany, Saturday June 18, 2016. Roger Federer's bid for Roger Federer of Switzerland reacts during the semifinal match against Alexander Zverev of Germany at the Gerry Weber Open ATP tennis tournament in Halle,Germany, Saturday June 18, 2016. Roger Federer's bid for](https://l450v.alamy.com/450vfr/2p18n71/roger-federer-of-switzerland-reacts-during-the-semifinal-match-against-alexander-zverev-of-germany-at-the-gerry-weber-open-atp-tennis-tournament-in-halle-germany-saturday-june-18-2016-roger-federers-bid-for-a-ninth-title-at-the-gerry-weber-open-came-to-an-early-end-saturday-when-he-was-beaten-in-the-semifinals-by-alexander-zverev-a-rising-german-prospect-who-notched-the-biggest-win-of-his-young-career-zverevs-7-6-4-5-7-6-3-win-over-the-top-seeded-eight-time-defending-champion-gave-him-a-place-in-his-first-final-of-the-year-friso-gentsch-dpa-via-ap-2p18n71.jpg)
Roger Federer of Switzerland reacts during the semifinal match against Alexander Zverev of Germany at the Gerry Weber Open ATP tennis tournament in Halle,Germany, Saturday June 18, 2016. Roger Federer's bid for
![Roger Federer begins Gerry Weber Open title defence with straight-sets win | Tennis News | Sky Sports Roger Federer begins Gerry Weber Open title defence with straight-sets win | Tennis News | Sky Sports](https://e0.365dm.com/16/06/768x432/roger-federer-atp-tennis_3484577.jpg?20160615160656)
Roger Federer begins Gerry Weber Open title defence with straight-sets win | Tennis News | Sky Sports
![Halle, Germany. 18th June, 2016. Roger Federer (SUI) and Alexander Zverev (GER) are playing the first semifinal of the 2016 Gerry-Weber-Open in Halle, Germany Credit: Janine Lang/Alamy Live News Stock Photo - Halle, Germany. 18th June, 2016. Roger Federer (SUI) and Alexander Zverev (GER) are playing the first semifinal of the 2016 Gerry-Weber-Open in Halle, Germany Credit: Janine Lang/Alamy Live News Stock Photo -](https://c8.alamy.com/comp/G42AE7/halle-germany-18th-june-2016-roger-federer-sui-and-alexander-zverev-G42AE7.jpg)
Halle, Germany. 18th June, 2016. Roger Federer (SUI) and Alexander Zverev (GER) are playing the first semifinal of the 2016 Gerry-Weber-Open in Halle, Germany Credit: Janine Lang/Alamy Live News Stock Photo -
![Halle: Federer races into quarters, keeps bid for ninth title on track | Tennis News - Hindustan Times Halle: Federer races into quarters, keeps bid for ninth title on track | Tennis News - Hindustan Times](https://images.hindustantimes.com/rf/image_size_640x362/HT/p2/2016/06/16/Pictures/ap6-16-2016-000259b_09c9d114-33ea-11e6-b762-306eb096a216.jpg)