Riyadh, Oct. 16 -- Defending champion Jannik Sinner set up a semifinal clash with Serbian veteran Novak Djokovic after easing past Greece's Stefanos Tsitsipas as the 2025 Six Kings Slam exhibition tennis tournament.

Facing Tsitsipas, who has been struggling with form recently and has dropped to No. 24 in the world rankings, the second-ranked Italian quickly raced to a 5-0 lead and wrapped up the first set 6-2 on Wednesday.

In the second set, Sinner once again broke serve early. Although Tsitsipas managed to hold serve in the seventh game to narrow the gap to 3-4, Sinner raised his level again, taking the next two games to secure a 6-3 win.

Also on Wednesday, world No. 4 Taylor Fritz of the United States fired eight aces and saved all thr...