Isner wins another third-set tiebreaker, advances past Korda into quarters

John Isner edged out wildcard Sebastian Korda 7-6(3), 1-6, 7-6(4) to move into the quarter-finals of the Cincinnati Masters on Thursday evening. Isner fired 20 aces to advance after two hours and five minutes.

Tiebreakers, of course, are nothing new for Isner — in terms of both his entire career and this week in Cincinnati. The 37-year-old opened with a 7-6(11), 3-6, 7-6(4) victory over Benjamin Bonzi and then he defeated doubles partner Hubert Hurkacz 7-6(5), 6-7(5), 6-2.

Isner, ranked No 50, will play fourth-seeded Greek Stefanos Tsitsipas on Friday.

Cincinnati Masters 1000, other round of 16 results:

• Marin Čilić vs. Carlos Alcaraz
• Felix Auger-Aliassime vs. Jannik Sinner
• Ben Shelton vs. Cameron Norrie
• Borna Coric beat Roberto Bautista Agut (15): 6-2, 6-3
• Stefanos Tsitsipas beat Diego Schwartzman (13): 6-3, 6-3
• Daniil Medvedev (1) beat Denis Shapovalov: 7-5, 7-5
• Taylor Fritz (11) beat Andrey Rublev (6): 6-7 (4), 6-2, 7-5