The highest-seeded American man at the U.S. Open is on to the quarterfinal once again. 

Taylor Fritz bounced back from a first-set deficit to grind out a 3-6, 6-4, 6-3, 6-2 upset victory over the No. 8-seeded Casper Ruud of Norway inside Louis Armstrong Stadium on Sunday, securing his spot in the final eight for the second year in a row. 

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Ruud may have shown more power at times, but Fritz started putting the ball exactly where he wanted it more often than not by the second set. 

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As a result, Fritz will play the winner of fellow American Brandon Nakashima and world No. 4 Alexander Zverev on Tuesday.