Reigning Nitto ATP Finals champion Stefanos Tsitsipas had not won a Western & Southern Open match entering the week. But the Greek star will play first-time Masters 1000 quarter-finalist Reilly Opelka for a spot in the last four on Wednesday evening.
Tsitsipas beat another big server, John Isner, on Tuesday. He has never faced Opelka in a tour-level match.
“I expect a difficult fight, a difficult battle. He has played John a few times and he holds a positive record against him, so I’m expecting better. I feel like there’s nothing wrong to expect better tomorrow,” Tsitsipas said. “I just need to be very well-prepared for that one. I’m sure there are going to be more rallies from the baseline and the serve is going to be more difficult to return, so I have to keep my focus at an even higher level.”
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Former World No. 3 Milos Raonic, who ousted Andy Murray in the third round, will try to maintain his good form against Serbian Filip Krajinovic. The Canadian will be playing a confident opponent, as Krajinovic lost a combined six games in his past two matches against second seed Dominic Thiem and Hungarian qualifier Marton Fucsovics.
“I know Milos forever. We used to play juniors together, so I know him really, really well. It’s always tough to play against those guys whose serve is really big. [It] puts a lot of pressure on your serve. But you have a couple of players like that, and you have to always find a way [and] fight for every point,” Krajinovic said. “Tomorrow I will step it up, try to get my chances and play my game. I’ll be focussed on my game. I will not be focussed on his serve or his game. I will be focused to be aggressive and to play my tennis.”
ORDER OF PLAY – WEDNESDAY, AUGUST 26, 2020
GRANDSTAND start 11:00 am
Not Before 1:00 pm
 Daniil Medvedev vs  Roberto Bautista Agut
 Novak Djokovic vs Jan-Lennard Struff
Not Before 5:00 pm
Not Before 7:00 pm
Milos Raonic vs Filip Krajinovic
COURT 17 Not Before 1:00 pm
Not Before 5:00 pm
Reilly Opelka vs  Stefanos Tsitsipas
COURT 10 start 11:00 am
Jean-Julien Rojer / Horia Tecau vs [WC] Steve Johnson / Austin Krajicek
 Wesley Koolhof / Nikola Mektic vs Pablo Carreno Busta / Alex de Minaur
Jamie Murray / Neal Skupski vs  Kevin Krawietz / Andreas Mies
TBA –  Rajeev Ram / Joe Salisbury vs  Marcel Granollers / Horacio Zeballos