Novak Djokovic claimed his 90th ATP title after beating Stefanos Tsitsipas in the final of the Astana Open in Kazakhstan.
Djokovic, a 21-time Grand Slam champion, beat his Greek opponent 6-3 6-4.
Tsitsipas lost his serve in the eighth game of the first set before his rival went on to take the opener.
Djokovic later broke Tsitsipas in the fifth game of the second set and took the match on his third match point.
The victory guarantees the 35-year-old a spot at the 2022 ATP Finals.
