MIAMI GARDENS, Fla. -- Top seed Alexander Zverev became the latest high seed to fall at the Miami Open on Wednesday, getting bounced by No. 17 seed Arthur Fils of France, 3-6, 6-3, 6-4 in a fourth-round men's match postponed by rain.
Fils, who beat American Frances Tiafoe in his previous match in a marathon three-setter, will face Jakub Mensik in Thursday's quarterfinals.
With Emma Raducanu's quarterfinal loss to Jessica Pegula finishing close to 11.30 p.m., the men's quarterfinal between Novak Djokovic and Sebastian Korda was pushed to Thursday under ATP rules aimed at avoiding matches dragging on into the early hours of the morning.
The winner of that match will face 14th-seeded Grigor Dimitrov, who barely survived the oppressive humidity to outlast No. 23 seed Francisco Cerundolo 6-7 (6), 6-4, 7-6 (3) in a nearly three-hour, men's quarterfinal.
Dimitrov was led off the court by a tournament doctor and ATP physio after sitting in his chair for over 25 minutes, saying he was feeling "dizzy."
Dimitrov, a Miami Open finalist in 2024, saved a match point in the third set when trailing 5-6 before forcing a tiebreaker. He squandered seven set points in the opening set and lost the tiebreaker 6-4.
Fils, who made the last eight of a Masters 1000 tournament for the second successive occasion after doing so at Indian Wells earlier this month, broke Zverev at 3-3 in the third set and kept the German moving. On match point, Fils pounded a ball down the left sideline that the top seed couldn't retrieve.
Fils, 20, received treatment on his back after the first set but rallied to win the next two, winning in two hours.
"I was feeling not great in the rallies," Fils said. "I've had a little problem in my back since I was young, so sometimes it hurts me a little bit. I had to find a rhythm, more aggressive and come into the court to play my game and not let him play. Because when you let him play, he is one of the best tennis players in the world. I'm really happy about the way I did it."
Associated Press and Reuters contributed to this report.