Melbourne [Australia], Jan 24 (ANI): Serbian tennis star Novak Djokovic on Friday advanced to the fourth round of the Australian Open at Rod Laver Arena here.Djokovic outclassed Japan's Yoshihito Nishioka 6-3, 6-2, 6-2 in the third-round clash.The defending champion once again produced jaw-dropping serve stats. Djokovic hammered 17 aces and lost only eight points on serve (54/62) to make his 12th appearance in the second week in Melbourne, ATP reported."Definitely one of the best serving matches I've had lately [and] inspired by my coach, Goran Ivanisevic. There are a lot of technical details you can talk about, but sometimes less is more. It's all about the rhythm and balance... So far, it's been working really well," Djokovic said.A record seven-time winner in Melbourne, Djokovic set up a clash with Diego Schwartzman in the fourth round. (ANI)

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