As the tennis world gears up for the final Grand Slam of the year, the US Open, all eyes are on the burgeoning rivalry between Jannik Sinner and Carlos Alcaraz. Yet, a recent health scare for Sinner in Cincinnati has cast a shadow of uncertainty, prompting former world No. 3 and Roger Federer`s ex-coach, Ivan Ljubicic, to weigh in with sharp insights on player welfare and the relentless nature of the ATP Tour.

Jannik Sinner`s unexpected withdrawal in Cincinnati sparked concerns ahead of the US Open.
Sinner`s Scrutiny: A Question of Recovery, Not Fragility
The abrupt end to Jannik Sinner`s Cincinnati campaign, attributed to a sudden illness, has understandably ignited discussions about his readiness for Flushing Meadows. Ljubicic, known for his pragmatic approach, posits that the severity of the situation hinges entirely on recovery time. “If he recovers in 2-3 days, there will be no repercussions,” he states, offering a glimmer of optimism. However, a prolonged recovery, spanning a full week, could prove detrimental. The sheer physicality demanded by best-of-five-set matches, coupled with the notorious heat and humidity of New York, could quickly deplete Sinner`s reserves, even against seemingly `easier` early-round opponents. It`s a cruel irony that even peak athletes are susceptible to the vagaries of their own physiology, especially when pushed to the brink.
Addressing persistent whispers about Sinner`s supposed physical fragility, Ljubicic firmly dismisses them. “For me, these are unrelated cases,” he asserts, pointing to isolated incidents like a hip issue, an elbow fall, or a presumed virus. According to the Croatian veteran, these are mere unfortunate contingencies, not symptomatic of an inherent weakness. It seems Sinner`s body is robust; it merely occasionally registers a protest against the brutal demands of professional tennis.
The Cement Showdown: Sinner vs. Alcaraz and the Art of Hard Court Tennis
The prospect of a third Grand Slam final between Sinner and Alcaraz – following Alcaraz`s triumph on Parisian clay and Sinner`s on Wimbledon grass – is a narrative arc many fans are desperate to see culminate on the US Open`s hard courts. While Alcaraz holds a 5-2 lead in their head-to-head on this surface, excluding their non-match in Cincinnati, Ljubicic highlights a crucial point: “the best Sinner expresses himself on this surface.”
He predicts an evenly matched contest, emphasizing that their encounters are consistently hard-fought spectacles. The duo, Ljubicic contends, are “clearly ahead of everyone else,” making a final appearance for either, barring unforeseen health issues for Sinner, an expected outcome. What will differentiate them in New York? The surface itself. New York`s courts typically play fast, diminishing the effectiveness of high trajectories and exaggerated topspin, areas where Alcaraz often thrives. The premium shifts to aggressive play, exceptional movement, and an athlete operating at “110% physically.” The quality of their service, a shot Sinner has diligently refined despite it being his “least natural,” will also be a critical factor. It`s a strategic dance, where every subtle advantage could determine the victor.
Beyond the Big Two: Outsiders and Italian Hopes
While Sinner and Alcaraz dominate the headlines, the field remains competitive. Ljubicic, drawing a parallel to the era of the `Big Three,` notes that the challengers are “quite fluid,” with different players emerging based on their current form. The usual suspects remain on the radar: Novak Djokovic, still a formidable force; Alexander Zverev, regaining his stride; and Taylor Fritz, a consistent threat on hard courts. Their presence ensures that the path to the final will be anything but a leisurely stroll.
From an Italian perspective, hopes extend beyond Sinner. Lorenzo Musetti, despite a recent dip in form post-Roland Garros, is still considered a “top ten player” whose underlying talent is unquestionable. And then there`s Flavio Cobolli, a name Ljubicic suggests could “surprise,” hinting at a newfound self-belief and understanding of his capabilities. These narratives add layers of intrigue to the tournament, proving that tennis is rarely just about the top two.

Carlos Alcaraz has shown remarkable consistency in results.
The Unyielding Calendar: A Call for Reform
Perhaps Ljubicic`s most pointed commentary targets the very structure of the ATP Tour. The expansion of ATP 1000 events to a 12-day format, he argues, makes player recovery and training “much more difficult.” The Cincinnati incident, in his view, serves as a stark warning. “I can`t understand why they insist on playing in such heat and humidity,” he laments. This isn`t just about athletic performance; it`s about athlete safety and the quality of the product itself. “Athletes risk getting hurt, the public doesn`t enjoy it. Something must be done.”
This critique resonates beyond the immediate context of the US Open, touching upon a systemic issue in modern sports. The relentless pursuit of expansion and revenue often comes at the cost of player well-being. It`s a delicate balance: maximizing exposure and income versus preserving the longevity and health of the very stars who drive the sport. Ljubicic’s plea is a reminder that while the show must go on, it shouldn`t be at the expense of its most valuable assets—the players themselves.
As the tennis world descends upon Flushing Meadows, the stage is set for an enthralling fortnight. Whether Sinner can fully shake off his Cincinnati woes to challenge Alcaraz`s consistent brilliance remains the central question. Yet, beyond the immediate drama of forehands and backhands, Ljubicic`s observations serve as a crucial, perhaps ironic, reminder: even as the sport celebrates its soaring stars, it must also critically examine the conditions under which they are expected to shine. The US Open will not only crown champions but also, perhaps, spark further reflection on the future path of professional tennis.