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Roger Federer progresses to quarters after straight set victory over Mischa Zverev in Halle - Eurosport
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Roger Federer beats Zverev to win ninth Halle title | Gerry Weber Open Halle 2017 Final Highlights - YouTube
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Halle, Germany. 23rd June, 2017. Roger Federer of Switzerland returns the ball during the men's singles quarterfinal match against Florian Mayer of Germany in the Gerry Weber Open 2017 in Halle, Germany,
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Alexander Zverev can challenge Federer in Halle, says tournament director | Alexander zverev, Roger federer, Tennis players
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Halle, Germany. 23rd June, 2017. Swiss tennis player Roger Federer during the ATP tennis tournament men's singles quarter final match against Florian Mayer from Germany in Halle, Germany, 23 June 2017. Photo:
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