Khachanov reaches US Open semifinals after Blockx retires due to injury

Karen Khachanov earned his third Grand Slam semifinal appearance, his first since 2026, after opponent Alexander Blockx was forced to stop midway through the third set due to injury. The US Open quarterfinal match on Wednesday saw the unseeded Russian lead 6-2, 7-5, 3-2 before No. 28 seed Blockx could not continue. This was an unexpected turn at Flushing Meadows, as Blockx showed signs of physical trouble from the start. The Belgian had his upper left leg wrapped and received treatment on both his lower leg and back between sets. Despite fighting through the second set and leveling the match, he could not continue when the third set stood at 3-2 in Khachanov's favor. Khachanov, 28, previously reached the US Open semifinals in 2026 and the Australian Open semifinals in 2026. He will face top-seeded Alexander Zverev or Botic van de Zandschulp in the semifinal scheduled for Friday. Meanwhile, the other half of the draw features an all-American semifinal between No. 8 Ben Shelton and No. 11 Frances Tiafoe. Blockx's early exit due to injury raises questions about young players' fitness amid a packed calendar. Although only 21 and showing impressive form at the tournament, Blockx could not finish his most important career match. Khachanov, on the other hand, took full advantage of the opportunity and demonstrated the composure of a player who has reached Grand Slam heights before. Statistics show Khachanov lost only three service games in 14 service games before Blockx retired. He also hit 18 winners to Blockx's nine and converted four of seven break-point opportunities. This suggests that even though the match ended early, Khachanov was playing high-quality tennis in New York. However, the road ahead is not easy. Zverev is a strong title contender, while Van de Zandschulp has caused many upsets. Nonetheless, with the physical advantage gained from a shorter match than expected, Khachanov can prepare well for his semifinal. Meanwhile, the Shelton vs. Tiafoe semifinal promises to be a thrilling clash between two American players. Shelton is in top form with a powerful serve, while Tiafoe has experience and previously made the US Open semifinals in 2026. This adds more intrigue to this year's tournament. Blockc's retirement also disappointed fans because the match was highly competitive. The Belgian had surprised many by defeating strong players en route to the quarterfinals and was expected to challenge Khachanov. But elite sports always carry injury risks, and this is a lesson for young players about managing fitness over a two-week tournament. Khachanov will have little rest as the semifinal takes place just two days later. Although considered an underdog against potential opponents, the Russian has proven he can shine on big stages. With confidence from this win and his vast experience, Khachanov could well spring a surprise against Zverev or Van de Zandschulp. In summary, this year's US Open is witnessing dramatic developments with both new faces and seasoned players. The semifinal is an opportunity for Khachanov to reaffirm his position in world tennis and deliver top-notch performances to the audience.