Stars including Roger Federer, Kei Nishikori, Alexander Zverev and Dominic Thiem explain what it takes to be successful on grass as they competed for the Gerry Weber Open in Halle.
Secrets to grass court success
Features
Halle
2017
Stars including Roger Federer, Kei Nishikori, Alexander Zverev and Dominic Thiem explain what it takes to be successful on grass as they competed for the Gerry Weber Open in Halle.
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