US Open Day 4: Shelton Survives Hurkacz Test, Medvedev Cruises, and the Rules Gray Zone from Two Birds

When two pigeons perched on the net during a crucial point, Daniil Medvedev could not hide his frustration. He pointed at the umpire, arguing about the decision to replay the point. That moment, seemingly a comical incident, opened a gray area in tennis rules that few notice. The chair umpire has full authority to decide when external factors interfere, but the line between 'affected' and 'not affected' is so vague that even a former world No. 1 had to speak up. The context of the fourth day at Flushing Meadows was not just about high-level matches. Tuesday's rain caused a backlog, forcing organizers to schedule 25 men's singles matches in one day. The goal of 'everyone completing the first round by Wednesday' failed, creating schedule inequity: players finishing their first round late have a shorter recovery window before their second round, while players like Shelton and Medvedev, who finished their second round on Wednesday, have a normal rest cycle. This is a structural issue any Grand Slam faces when weather intervenes. The day's centerpiece was the clash between Ben Shelton, the No. 8 seed, and Hubert Hurkacz, one of the tour's best servers. Shelton won 6-3, 5-7, 7-6(3), 7-5. Looking at the score, I see a clear tactical signal: Shelton read Hurkacz's serve patterns in the tiebreak, where he won 7-3. That is not coincidence. Hurkacz is a top-5 ace-rate player, but when facing a wide lefty serve from a left-hander like Shelton, the advantage becomes balanced. Shelton lost the second set 5-7, but his ability to reset after losing a set is a positive sign that his mentality was not shaken. However, the most notable pattern is Shelton's 'third-round ceiling.' He has reached the third round in 8 consecutive Grand Slams – a rare consistency – but has only advanced past the third round once, the 2026 US Open semifinal. His conversion rate from round 3 to round 4 is only 12.5%, far below expectations for a top-10 seed. Shelton's hard-court specialization is increasingly clear: he failed to reach the third round at Roland Garros and Wimbledon 2026, but is very strong on hard courts. This raises the question of whether he is truly a title contender or just a 'hard-court specialist' hyped by American media. As for Medvedev, the 6-3, 6-3, 7-5 win over young Gorzny was expected. As the No. 7 seed, he needs to win like that. But I see no improvement in Medvedev's game. He remains a counterpuncher with flat, deep shots and excellent movement. However, at 28, the big question is whether he can beat Alcaraz or Sinner in later rounds. A win over a lower-ranked opponent proves nothing. Another bright spot was Alex Michelsen, who surprised by defeating No. 16 seed Nakashima 6-3, 6-4, 6-4. Both are young Americans, but Michelsen controlled the match completely. He stood deep to receive Nakashima's second serves and attacked proactively, disrupting his opponent's rhythm. This win suggests Michelsen could be a name to watch in the near future. But perhaps the most notable story for Asian fans is Bu Yunchaokete's dominant win over Jodar, the 19-year-old Spaniard seeded No. 12 (if that information is accurate). The score 6-2, 6-1, 6-1 was a demolition. If Jodar was indeed the No. 12 seed, this is a major shock. But I doubt this seeding – it might be a qualifying or junior seed. Regardless, this win is a sign that Chinese men's tennis is making significant progress. Back to the rules issue. The incident of two birds on the net in Medvedev's match created an interesting controversy. The umpire decided to replay the point, and Medvedev protested. He believed the point was decided before the birds landed. This is a gray area in the rules: when is an external factor considered 'affecting' the point? Tennis rules do not specifically address animals, and the umpire has full discretion. But the lack of consistency in similar situations can create controversy. I do not believe in the final verdict; I believe in the chain of reasoning leading to it. In this case, the umpire's reasoning was not clearly explained. A contrarian view: the bird incident is not worth arguing about. In a match where Medvedev won easily, his strong reaction could be a sign of accumulated tension. He knows he needs to save energy for later rounds, and any disruption can affect his rhythm. But from a rules perspective, the umpire's decision is reasonable: when external factors interfere, replaying the point is the safest way to ensure fairness. The issue is not the decision, but the lack of a clear regulation for similar situations. Overall, the fourth day of the US Open brought many stories. Shelton passed a difficult test, but he still faces points pressure: 720 points from last year's semifinal are a burden. If he stops before the fourth round, he could drop out of the top 15. Medvedev remains steady but shows no signs of improvement. Michelsen is emerging as a new American talent. And Bu Yunchaokete created a shock for Asian tennis. Regarding the schedule, the switch to a Sunday start last year helped reduce first-round congestion, but Tuesday's rain showed the limits of this reform. No schedule can resist weather. However, the key is for organizers to have more flexible contingency plans, such as scheduling matches on indoor courts or adjusting rest periods between matches to ensure fairness. Finally, I want to emphasize: rules are not for punishment, but to prevent the match from becoming a game of chance. The bird incident, the congested schedule, or Shelton's points pressure are all tests for the system. And when the stadium is empty, data begins to speak its own language. The numbers about Shelton's third-round conversion rate, surface specialization, and points pressure all tell a story that the naked eye cannot see. The naked eye only sees the ball being hit; the referee's eye sees the intent behind the violation. And in a major like the US Open, the intent behind every decision, every shot, every reaction matters more than what we see on the screen. The question for the rest of the tournament: Can Shelton break his 'third-round ceiling'? Can Medvedev compete with the younger generation? And can players like Michelsen or Bu create bigger surprises? Let's wait and see.