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Roger Federer is an 'uncomfortable' opponent: Leonardo Mayer reveals why | Tennis | Sport | Express.co.uk
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![Hamburg, Germany. 30th July, 2017. Leonardo Mayer of Argentina celebrates his victory over Mayer of Germany with his trophy in the men's singles final of the Tennis ATP-Tour German Open in Hamburg, Hamburg, Germany. 30th July, 2017. Leonardo Mayer of Argentina celebrates his victory over Mayer of Germany with his trophy in the men's singles final of the Tennis ATP-Tour German Open in Hamburg,](https://c8.alamy.com/comp/JNEP1K/hamburg-germany-30th-july-2017-leonardo-mayer-of-argentina-celebrates-JNEP1K.jpg)
Hamburg, Germany. 30th July, 2017. Leonardo Mayer of Argentina celebrates his victory over Mayer of Germany with his trophy in the men's singles final of the Tennis ATP-Tour German Open in Hamburg,
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