Novak triumphed 6-3, 6-4 against no.3 seed Stefanos Tsitsipas to add the Kazakhstan trophy to victories in Rome, Wimbledon and Tel Aviv this season.
Novak and Daniil met for the 11th time in a highly anticipated semi-final match at the Astana Open on Saturday. The two players were level at one set apiece, 4-6, 7-6 (6), when the second seed decided to pull out due to a leg injury.
Novak Djokovic recorded a 6-3, 6-1 victory against world no. 34 Botic Van De Zandschulp on Thursday to advance into the last eight at the ATP 500 event in Astana, Kazakhstan. Number 4 seed will face Karen Khachanov (RUS) in the quarterfinals on Friday.