Sabalenka overcomes Noskova with bold second-serve ace to reach US Open semifinals

New York – The second serve is often treated as a weakness for big hitters, but Aryna Sabalenka used exactly that weapon to close out the most pressurized quarterfinal of the summer. At 7-6 in the deciding tiebreak of the third set, she hit a second-serve ace into the left corner of Linda Noskova's service box, leaving the Wimbledon champion with no chance to reply. The final scoreline—7-6 (1), 3-6, 7-6 (10-7)—fittingly closed a match in which the smallest details shaped every set. This win not only put Sabalenka into the US Open semifinals for the sixth consecutive year but also kept alive her bid for a third straight title in New York. Before the match, her No.1 ranking was at stake, and she knew that a loss would rewrite the rest of her season. Across the net stood Linda Noskova, the No.6 seed and 2026 Wimbledon champion, carrying the confidence of a young player no longer afraid of big names. Noskova came within a breath of repeating what Serena Williams did in 2026, when the Wimbledon champion also reached the US Open semifinals in the same season. That context made this more than a generational clash. It became a test of who could turn technical edge into composure when the match threatened to slip away. Following Sabalenka through the North American hard-court season, I have sensed that her edge in New York this year does not come only from the forehand but from the way she accepts uncomfortable moments. The second set showed Sabalenka rushing, losing depth and choosing poor moments to go for winners. Noskova recognized that rhythm, dragged her out of her comfort zone and won the set 6-3. The notable detail, however, was that Sabalenka did not keep wasting energy on long rallies; she chose lower-risk tennis until a better opportunity arrived. Early in the third set, that patience became the tactical base. Sabalenka did not need an early break; she only needed to bring the match back to her terms. Her first serves found more of the lines, her return position moved closer to the baseline, and she stopped trying to end points from bad positions. Instead, she pushed deep, making Noskova cover more court and think through the chessboard rather than simply relying on power. The climax of the match came in two tiebreaks. The first set ended 7-1 in the tiebreak; the final set also ended in a tiebreak, this time 10-7. Sabalenka did not have to dominate every moment; she simply had to be present at the moments that mattered. The second-serve ace was the clearest image of that: a solution that looked risky but was actually based on target selection, not pure power. One detail stood out: the way Sabalenka used her second serve inside tiebreaks. Not many players dare to do that, because a failed second serve hands the initiative to the opponent. Yet in the part of the court where every error matters, she kept her target and trusted that Noskova would return the second serve to her forehand. That detail may not appear in the traditional stats column, but it shows her margin was not founded on luck alone. The contrarian view is this: winning or losing the final tiebreak can be a razor-thin line, but it should not be called fortune. The US Open has produced enough big matches to punish players who lack experience at 9-9 or 7-7. Sabalenka has lived in those moments many times; Noskova has only recently moved into the spotlight. The difference between the two games was not speed. It was about who walked into the tiebreak with the mental state of someone who had done it before. For Noskova, the defeat may hurt, but it should be seen as a signal for her future. She proved that her serve, forehand and return are all good enough to trouble one of the strongest women on hard courts. Her next step is not about power. It is about learning how to allocate energy at the most important points. If she can hold this level over the next year, her name will appear in the final week of Grand Slams again. In the semifinals, Sabalenka will face the winner between Jessica Pegula and Emma Navarro. The match is expected to be played on Thursday, giving her more than a day to recover from a three-set battle. For a player who can hit an ace on second serve at match point, stamina is no longer the biggest question. The real question is whether she can repeat that calm against an opponent who knows how to disrupt her rhythm. Looking back, the most memorable moment of the match was not a rally or a baseline winner. It was the two seconds of silence before the second-serve ace. Sabalenka looked at the ball, relaxed her shoulder and hit a low-trajectory serve that Noskova could only watch. A Grand Slam champion does not always play her best match; she only needs to play well enough at moments when few others dare to play at all.