World No. 1 Novak Djokovic defeated Diego Schwartzman 6-3, 6-2 improving to 6-0 lifetime vs. the Argentinean.Novak Djokovic raised his ATP Finals opening round-robin record to 12-1.“Everything is difficult against him,” Diego Schwartzman said of playing Novak Djokovic. “He has a lot of talent when he has the chance to move the ball.”Novak Djokovic launched his quest for a record-tying sixth ATP Finals championship.“I do miss the crowd,” Novak Djokovic said. “I think that’s one of the most important aspects of professional tennis of why we play this game.”In a rematch of the Rolex Paris Masters final, Daniil Medvedev beat Alexander Zverev 6-3, 6-4 for his first career ATP Finals match win.Daniil Medvedev, who surprised Alexander Zverev hitting an underhand serve at 4-3 in the second set, became the first Russian to win a singles match at the ATP Finals since 2009 champion Nikolay Davydenko.Alexander Zverev struggled on second serve clanking seven double faults and winning just four of 19 points played on his second serve.Despite losing to Daniil Medvedev for the third time in their last four meetings, Alexander Zverev still leads their head-to-head series, 5-3.Daniil Medvedev scored his sixth straight victory nine days after defeating Alexander Zverev in the Rolex Paris Masters final.
