Daily Data Viz: Defending champ Djokovic is dominating return of serve
Novak Djokovic has used his return of serve skills to keep the pressure on his opponents throughout the 2015 season. He’s only lost three matches this year and in those matches he wasn’t able to exert the same return pressure as his other matches. Against Ivo Karlovic in Doha and Roger Federer in Dubai on hard courts, and Stan Wawrinka on the red clay of Roland Garros, Djokovic struggled on return. He managed just two breaks of serve in those three matches (48 return games played).
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