Yardbarker
x
Stefanos Tsitsipas Loses His Cool After US Open Upset: The Underarm Serve Drama That Has Tennis Talking
- Jul 30, 2025; Toronto, ON, Canada; Stefanos Tsitsipas (GRE) reacts after losing a point against Christopher O'Connell (AUS) during second round play at Sobeys Stadium. Mandatory Credit: Dan Hamilton-Imagn Images

Let’s be honest here – watching Stefanos Tsitsipas this season has been about as enjoyable as watching paint dry on a rainy day. But Thursday night at the US Open? Well, that gave us some actual drama worth talking about.

The Greek star, who’s been having what can only be described as a nightmare season, decided to cap off his latest early exit with a heated confrontation that had tennis fans glued to their screens. After losing a grueling five-set match to Germany’s Daniel Altmaier, Tsitsipas couldn’t let sleeping dogs lie and had to make his feelings crystal clear about one particular play.

What Really Happened Between Tsitsipas and Altmaier?

Picture this: You’re ranked 26th in the world, you’ve just blown a 2-1 set lead, and you’re staring down another embarrassing early Grand Slam exit. Most players would probably just shake hands, smile for the cameras, and retreat to lick their wounds in private. Not Tsitsipas.

The moment that set everything off? An underarm serve from Altmaier during the fourth set. Now, for those keeping score at home, underarm serves are completely legal in tennis. They’re just not exactly what you’d call… classy. Think of it as the tennis equivalent of bunting in baseball with runners in scoring position – technically fine, but it’ll raise some eyebrows.

As the two players met at the net for the customary handshake, Tsitsipas decided this was the perfect time for some friendly post-match counseling. “Next time don’t wonder why I hit you, ok?” he told a stone-faced Altmaier, referencing an earlier incident where he’d deliberately aimed a forehand at the German’s body.

When Altmaier didn’t respond (probably the smartest move he made all night), Tsitsipas kept going: “I’m just saying if you serve underarm… if you serve underarm.” The German simply shook his head and walked away, leaving Tsitsipas to stew in his own frustration.

How Bad Has Tsitsipas’ Season Really Been?

Here’s where things get genuinely painful to watch. This US Open loss wasn’t some isolated incident – it’s become the depressing norm for a player who was supposed to be competing for Grand Slam titles by now.

Let’s run through the damage: First-round exits at both the Australian Open and Wimbledon. Second-round exits at the French Open and now the US Open. His only saving grace this season has been a title in Dubai, which feels about as significant as finding a twenty-dollar bill in your old jeans at this point.

The numbers don’t lie either. Tsitsipas has tumbled out of the top 20 for the first time since 2018, sitting with a 21-17 win-loss record that would make any top player want to hide under a rock. For someone who was once considered the future of men’s tennis, this has to sting worse than stepping on a LEGO barefoot.

But wait, there’s more! During this very match with Altmaier, Tsitsipas also managed to pick up a coaching violation. His father and coach, Apostolos, was caught shouting instructions from the opposite end of the court – a clear violation of the updated coaching rules. Because apparently, one controversy per match just wasn’t enough.

The Underarm Serve Debate: Much Ado About Nothing?

Let’s talk about the elephant in the room – was Altmaier actually in the wrong here? Short answer: absolutely not. Long answer: still absolutely not, but with more context.

Underarm serves have been part of tennis for decades. Nick Kyrgios has made them his signature move. Even the legendary John McEnroe has defended their use. They’re a tactical weapon, plain and simple. If you’re standing three counties behind the baseline waiting for a serve, don’t be shocked when your opponent decides to drop one short.

The real question is why Tsitsipas got so worked up about it. Was it the frustration of another early exit? The embarrassment of losing to a player ranked 30 spots below him? Or maybe just the culmination of a season that’s gone about as well as a chocolate teapot?

Altmaier, for his part, handled the situation with more class than a finishing school graduate. Speaking to Sky Sports afterward, he basically gave Tsitsipas the benefit of the doubt: “Tomorrow Stefanos will regret his words. When you’re playing tennis until midnight, you can sometimes say something you don’t really mean.”

What’s Next for the Struggling Greek Star?

The harsh reality is that Tsitsipas finds himself at a crossroads. At 26, he’s no longer the promising young gun who could get away with inconsistent results. The tennis world has moved on, and players like Carlos Alcaraz and Jannik Sinner have claimed the spotlight he once held.

His ranking slide tells the whole story. This is a player who was once knocking on the door of Grand Slam glory, reaching the French Open final in 2021. Now he’s struggling to make it past the second round of majors and picking fights over perfectly legal serves.

The question isn’t whether Tsitsipas can turn things around – he’s still got the talent. The question is whether he’s got the mental fortitude to handle the pressure when things aren’t going his way. Based on Thursday night’s performance, that jury’s still very much out.

Why This Controversy Matters More Than You Think

This incident reveals something deeper about the current state of men’s tennis. The sport has become incredibly competitive, and the margins for error have shrunk dramatically. When you’re struggling, every little thing becomes magnified. A routine underarm serve suddenly becomes a personal affront. A standard handshake becomes an opportunity for grievance airing.

For Tsitsipas, this moment will likely follow him for a while. Tennis has a long memory, and players don’t forget when someone questions their tactics – especially when those tactics are completely within the rules. Altmaier handled it with grace, but you can bet other players took note of how Tsitsipas conducted himself.

The Greek star needs to take a long, hard look in the mirror. Is this the player he wants to be? The guy who picks fights after losses instead of figuring out how to win more matches? Because right now, that’s exactly what’s happening.

As for what comes next, Tsitsipas has some serious soul-searching to do. His next tournament can’t come soon enough – not because anyone expects a miraculous turnaround, but because he needs to prove he can handle adversity without losing his cool. Tennis is hard enough without making enemies out of your opponents over legal serves.

The clock is ticking on what was supposed to be a golden career. Time will tell if Tsitsipas can find his way back to the top, or if we’ll be watching more post-match confrontations instead of championship celebrations.

This article first appeared on Total Apex Sports and was syndicated with permission.

More must-reads:

Customize Your Newsletter

Yardbarker +

Get the latest news and rumors, customized to your favorite sports and teams. Emailed daily. Always free!