In the absence of top seed Novak Djokovic, who lost by default in the fourth round, and Rafael Nadal and Roger Federer - who opted out of this year's tournament - the men's draw will have its first new Grand Slam champion in six years on Sunday. He is the only player remaining with more than two major semifinals to his name (Medvedev, 2, Zverev, 2, Carreno Busta, 2).
It's semifinal time at the 2020 US Open, with Friday's final four set to take place today in Arthur Ashe Stadium, beginning at 4 PM EST.
Thiem said: 'After the first set I think it was great tennis from both of us and I could have been two sets to one down.
"I knew I had to come up with better tennis and be more stable", said a relieved Zverev.
"I still hope I can make it to the finals and then we'll see", Zverev said after his four-set quarterfinal win over Borna Coric.
But even without them, the second seed expects his semi-final clash against last year's Flushing Meadows finalist Daniil Medvedev to be a blockbuster.
The trio have between them won 56 of the last 67 Grand Slam titles since Federer won his first at Wimbledon in 2003.
Zverev is a 23-year-old from Germany who is ranked No. 7 and seeded No. 5.
Alexander Zverev, of Germany, reacts during a match against Borna Coric, of Croatia, during the quarterfinals of the US Open tennis championships, Tuesday, Sept. 8, 2020, in NY.
He said: "I saw many matches of him". After a shaky start in the first two sets, the German settled into his rhythm to take the match away from Busta.
Thiem grabbed the early momentum inside Arthur Ashe Stadium, taking the first set, but a couple of quick errors on his serve gave Medvedev a vital break and the early lead in the second set.
A day after a pair of well-played and competitive women's semifinals _ won by Naomi Osaka and Victoria Azarenka, who face each other Saturday for the championship _ Carreno Busta vs. Zverev offered little in the way of those characteristics for two sets.
After totaling 25 winners and 36 unforced errors over those first two sets, he had 46 winners and just 21 unforced errors over the last three. He served 24 aces to get out of trouble in the match. "That I had more winners than him, it's something unbelievable for me".
It was a match of fine margins despite the one-sided scoreline, with Medvedev claiming the only break of serve midway through the second set after having snatched the first from Rublev's grasp. "The two best players in the world are going to be playing on court".