He was banned from returning for three years, but Australia has since lifted its requirement for visitors to show proof of vaccination status
World number 17 Cilic, a former US Open champion, fought back to defeat 13th-ranked Pablo Carreno Busta 5-7, 6-3, 7-6 (7/5) as Croatia booked a semi-final clash against Australia.
The 40-year-old tennis star said that the best word to describe what she is up to is "evolution" and that she wants to grow her family.
The 19-year-old Alcaraz has made history following his title run at the US Open, becoming the youngest World No. 1 in the history of the ATP Rankings.
Down 5-4, Swiatek fired a forehand winner that hit the line. When Jabeur's forehand sailed long two points later, she had closed another deal.
Jabeur is already targeting what would be her debut at the WTA finals in Fort Worth, Texas. A successful run there could help her begin to close the gap on World No.1.
Ram and Salisbury closed the net effectively, attacked second serves and rallied from 1/4 in the first-set tie-break to finally triumph after one hour and 57 minutes.
If she can defeat Jabeur, Swiatek will become the first woman since Angelique Kerber in 2016 to win two majors in one season.
"From the beginning until the end, great performance - at least I will talk about myself, from my side," Khachanov said in his post-match press conference.
Swiatek, a 21-year-old from Poland who won the French Open in 2020 and this June, twice failed to serve out the victory Wednesday, at 5-4 and 6-5 in the second set.
His fines totalled USD 32,500 although the sum will only cause a small dent in his total prize money of USD 445,000.
Whether or not TV executives and tournament ticket-sellers agree, that is a popular sentiment among current players. "Unfortunately for all of us," Murray said, "the sport moves on."
"It was a crazy match I was expecting it would be like this. I'm ready to run, to fight to play five sets. We played almost four hours and that's the only way to beat Nick," Khachanov added.
Khachanov has never appeared in a major semifinal. The winner will face No. 5 Casper Ruud on Friday for a berth in the championship match.
Tiafoe, 24, will face Andrey Rublev, who he defeated over five sets in the third round in 2021, for a place in the semi-finals.
“Well done for him,” Nadal said. “He was better than me.”
In the women's draw meanwhile, rising American star Gauff kept home hopes alive with a battling 7-5, 7-5 win over China's Zhang Shuai on the Arthur Ashe Stadium.
Serena Williams won over all of them with a brand of aggression that was thrilling and ruthless in equal measure.
A fighter who bowed out on her own terms. She wouldn't have wanted to go out in any other manner.
Kyrgios, whose natural talent is only equalled by his run-ins with officials, other players and occasionally spectators, has already caused controversy at the US Open.