"Frances Tiafoe Advances to US Open Semifinals as Grigor Dimitrov's Injury Forces Exit"

 Here’s a more concise rewrite of the article:

**Frances Tiafoe and Taylor Fritz Set Up All-American US Open Semifinal**

Frances Tiafoe and Taylor Fritz secured their spots in the US Open semifinals on Tuesday, ensuring an American man will reach the final at the tournament for the first time in 18 years.

Tiafoe, seeded 20th, advanced after his opponent Grigor Dimitrov retired due to injury in the fourth set. Tiafoe was leading 6-3, 6-7(5), 6-3, 4-1 when Dimitrov, hindered by a hamstring issue, was forced to withdraw. Reflecting on the outcome, Tiafoe said, "It's not the way I want to get through, but obviously happy to get through."

Earlier, Fritz, seeded 12th, earned his first Grand Slam semifinal berth by defeating No. 4 seed Alexander Zverev 7-6(2), 3-6, 6-4, 7-6(3). The upcoming Fritz-Tiafoe semifinal marks the first all-American men's semifinal at a major since 2005.

Tiafoe, who reached the US Open semifinals in 2022, expressed excitement about the matchup, saying, "It's the biggest match of me and Taylor's life. We've known each other for so long. To be able to play him here... is going to be awesome."

The remaining men's quarterfinals feature No. 1 Jannik Sinner against No. 5 Daniil Medvedev, and No. 10 Alex De Minaur facing No. 25 Jack Draper.

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