ATP Miami: Stefanos Tsitsipas defeats Kei Nishikori, Aslan Karatsev goes down against Sebastian Korda

Stefanos Tsitsipas is in the round of 16 of the ATP Masters 1000 tournament in Miami after a three-set win over Kei Nishikori.Aslan Karastev , on the other hand, missed the jump to the round of 16.