New York: The bottom half of the US Open men's draw, where three-time champion Rafael Nadal resides, was blown wide open on Tuesday after four of the top-10 seeds crashed out at the first hurdle of the year's final Grand Slam.
Austria's Dominic Thiem, Greek Stefanos Tsitsipas, Russian Karen Khachanov and Spaniard Roberto Bautista Agut were all sent packing before Nadal restored some semblance of order to his half of the draw.
"That's tennis," Nadal, who used a clinical display to beat John Millman in his New York opener, told reporters when asked about the slew of upsets.
Spanish 10th seed Roberto Bautista, who reached the semifinals at Wimbledon last month, was the first top-10 casualty as he lost 3-6, 6-1, 6-4, 3-6, 6-3 to Kazakhstan's Mikhail Kukushkin.
Eighth seed Tsitsipas, who reached this year's Australian Open semifinal, was the next out the door as he fell 6-4, 6-7(5), 7-6(7), 7-5 to Russian Andrey Rublev during a match in which the Greek lashed out at the umpire.
Austrian fourth seed Thiem, who was projected to meet Nadal in the semifinals, then followed his peers to the exits as he suffered a 6-4, 3-6, 6-3, 6-2 loss to unseeded Italian Thomas Fabbiano, making him the highest-seeded casualty.
"I mean, congratulations to him and I'm happy for him. But it was not the real me there on the court," said Thiem, who prior to the tournament downplayed his chances because of a virus he picked up in the build-up to the US Open.
Russian ninth seed Khachanov, who could have faced Nadal in the quarterfinals, was the final victim, falling 4-6, 7-5, 7-5, 4-6, 6-3 to Canada's Vasek Pospisil, who recorded his first win in 2019 after missing several months after surgery.
"If you play bad, you can lose," said Nadal. "Tsitsipas had a very tough first round.
"Of course, Karen is a surprise. I think Thiem has been very sick for the last 10 days. I feel very sorry for him.”