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Andy Murray and Novak Djokovic set up Britain-Serbia quarter-final clash after Davis Cup heroics | South China Morning Post
![Novak Djokovic salutes good friend Viktor Troicki on his retirement, calls him an "important part of his tennis story" Novak Djokovic salutes good friend Viktor Troicki on his retirement, calls him an "important part of his tennis story"](https://staticg.sportskeeda.com/editor/2021/06/2ce7f-16245639606356-800.jpg)
Novak Djokovic salutes good friend Viktor Troicki on his retirement, calls him an "important part of his tennis story"
![Viktor Troicki of Serbia returns the ball to country mate Novak Djokovic during first-round action at the U.S. Open held at the National Tennis Center on August 31, 2010 in New York. Viktor Troicki of Serbia returns the ball to country mate Novak Djokovic during first-round action at the U.S. Open held at the National Tennis Center on August 31, 2010 in New York.](https://c8.alamy.com/comp/TYKYYK/viktor-troicki-of-serbia-returns-the-ball-to-country-mate-novak-djokovic-during-first-round-action-at-the-us-open-held-at-the-national-tennis-center-on-august-31-2010-in-new-york-upi-photomonika-graff-TYKYYK.jpg)
Viktor Troicki of Serbia returns the ball to country mate Novak Djokovic during first-round action at the U.S. Open held at the National Tennis Center on August 31, 2010 in New York.
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