IN a day that largely went the way of the higher ranked player in each Miami Open ATP 1000 contest, the fourth round of the tournament was decided following eight singles matches played out overnight. Unlike the day before where all bar two matches were three-setters, this day was a little different with many of the matches racing through quickly and all bar one being over in straight sets results.
The biggest upset was arguably American Sebastian Korda who took out the red-hot Aslan Karatsev, with the Russian now-17th seed no match for the home nation hero. Korda won 6-3 6-0 in a one-sided affair to advance to the last 16 to be one of only two unseeded players in that half of the draw. The other is Croatian Marin Cilic, with the veteran toppling Italian teenager Lorenzo Musetti in straight sets, 6-3 6-4.
“[It was] my third match in a row on the same court and I just got used to the conditions,” Cilic said post-match. “I felt quite good on the ball today and I returned well. I felt that I put a lot of returns back in comparison to the first two matches. It was a very good performance and definitely something motivating for the next matches.”
Polish up-and-comer Hubert Hurkacz defied his 26th seeding with a tight straight sets win over sixth seed Canadian Denis Shapovalov. Hurkacz won 6-3 7-6 to hold off the fellow youngster, winning 8-6 in a nail-biting second set tiebreaker. It was better news for Shapovalov’s compatriot Milos Raonic, who toppled 20th seed Ugo Humbert 6-4 7-5 to advance to the Round of 16. Humbert was one of two Frenchman to depart on the day, with 25th seed Adrian Mannarino bowing out to fifth seed Argentinian Diego Schwartzman 6-1 6-4.
On the Grandstand court, fourth seed Andrey Rublev defeated 29th seed Hungarian Marton Fucsovics 6-2 6-1 to continue his ripping form, defeating his opponent for the third time in the past month. Last time they played, Fucsovics famously said he would be glad if he “never had to play him again”, and unfortunately for the Hungarian, the tournament draw was not kind to him.
“I was laughing, because of [the] situation and plus Marton also told me, ‘I don’t want to see you. I don’t want to see you,'” Rublev said post-match. “[It was] just a situation that [was] fun, and I feel sorry.”
In the latest match, Stefanos Tsitsipas and Kei Nishikori engaged in the best battle of the day, as the Greek won the first set, before the former Top 5 Japanese talent took out the second set. It took a full three sets for Tsitsipas to finally shake off Nishikori, breaking him twice in the deciding set to cruise to a win in just under two hours, 6-3 3-6 6-1.
MIAMI OPEN ROUND OF 32 RESULTS:
 Stefanos Tsitsipas (GRE) defeated  Kei Nishikori (JPN) 6-3 3-6 6-1
 Andrey Rublev (RUS) defeated  Marton Fucsovics (HUN) 6-2 6-1
 Diego Schwartzman (ARG) defeated  Adrian Mannarino (GFRA) 6-1 6-4
 Hubert Hurkacz (POL) defeated  Denis Shapovalov (CAN) 6-3 7-6
 Milos Raonic (CAN) defeated  Ugo Humbert (FRA) 6-4 7-5
Sebastian Korda (USA) defeated  Aslan Karatsev (RUS) 6-3 6-0
 Lorenzo Sonego (ITA) defeated Daniel Elahi Galan (COL) 7-6 6-3
Marin Cilic (CRO) defeated Lorenzo Musetti (ITA) 6-3 6-4
Picture credit: ATP Tour