![US Open 2021: Novak Djokovic & Alexander Zverev coast to wins in New York](https://cdn.newsserve.net/en/knowledge/Novak-Djokovic_20190129.jpg)
US Open 2021: Novak Djokovic & Alexander Zverev coast to wins in New York
Novak Djokovic continues his pursuit of a calendar Grand Slam by reaching the US Open third round after overcoming Dutch rival Tallon Griekspoor - and a heckler.
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