Stefanos Tsitsipas Is Winning Again. Can One Grand Slam Run Change an Elite Player's Confidence?

Stefanos Tsitsipas had lost all five of his previous matches against Arthur Fils. He was unseeded at the US Open for the first time in nine years, ranked 53rd after sliding as low as 88th earlier this season.

He beat Fils in four sets anyway, choking back tears afterward as he described a stretch he called something he'd "never really experienced before."

How far this slump actually went

Tsitsipas has never advanced past the third round at the US Open despite being a top-11 seed on six separate occasions. In his previous five appearances there, he'd been knocked out by unseeded players every single time. This year he arrived as the unseeded player himself, a genuine role reversal after two difficult years of injuries and form collapse.

"It's very easy to not feel confident, especially when you haven't beaten top players in a long time," he admitted.

What actually changed behind the scenes

Tsitsipas ended his coaching relationship with his father Apostolos, a partnership that had defined his entire career, and brought in Goran Ivanisevic and a new team including Mouratoglou associate Perrin. He described the change as bringing "much-needed calm" back into his tennis life.

That's a significant, uncomfortable decision for any athlete to make, especially one whose father had coached him since childhood. It suggests the problem wasn't purely technical.

Why a single win can matter more than the scoreline suggests

Beating a player who'd just won his first Masters 1000 title, and who held a perfect head-to-head record against you, isn't just one match. It's tangible proof, not just a coach's reassurance, that the old level is still physically reachable. That distinction matters enormously to a player who's spent two years being told by his own team that he still has it.

Tsitsipas described it in exactly those terms: a moment he could look back on and think, "I've still got the game that I'm looking for."

Why one result doesn't settle the bigger question

A single statement win doesn't erase two years of decline, and Tsitsipas knows it. The real test is whether this result becomes the first data point in a genuine rebuild or simply a great night against a tired opponent who'd just played through a grueling Cincinnati title run.

His own answer, when asked if he could reclaim his former top-three form, was two words: "Why not?"

Tsitsipas just beat a player who'd never lost to him, at a tournament that's given him nothing but disappointment for a decade. Is one emotional, statement win enough to genuinely restart a career, or does real confidence only return after it happens again, and again, against opponents who aren't running on fumes?

There is also a broader lesson in what Tsitsipas has been willing to change. Elite careers are often presented as a straight line of improvement, but rebuilding can require admitting that familiar routines no longer work. For Tsitsipas, separating from his father and reshaping his coaching environment meant changing one of the most established parts of his professional identity.

The result may not immediately return him to the top three, but it has given him something he had been missing: evidence that change can still produce belief.