Tennis star Novak Djokovic has reached the quarterfinals in the Olympic Games.
The Serb won in two straight sets, 7–5, 6–3, against German Dominik Koepfer in the round of 16.
The 37-year-old has not lost a single set so far during the singles tournament in the Paris Olympic Games.
In the quarterfinals, Djokovic will face Greek Stefanos Tsitsipas.
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