How to watch today's Alcaraz vs. Rublev quarterfinal matchup at the Cincinnati Open as both players look to win their first titles.

Should Alcaraz get through Zverev, he will either have another rendition of his superb rivalry with world No. 1 Jannik Sinner or a date with up-and-comer Térence Atmane in the final, whose immaculate run at Cincinnati has been one of the top stories across the sport.