Paris: Russia’s Karen Khachanov clinched the biggest win of his career on Sunday with a 7-5, 6-4 upset of Novak Djokovic to claim the Paris Masters title. Khachanov became the third different first-time winner of a Masters tournament this year and denied Djokovic a fourth title in a row ahead of his return to world No. 1 on Monday. Djokovic had earlier defeated Roger Federer in a semi-final that he described as “one of the best matches” between the long-time rivals to extend his winning run to 22 outings. On Saturday, the Serb outlasted Federer in just over three hours to prevail 7-6 (8/6), 5-7, 7-6 (7/3).