Could Juan Martin del Potro Have Been the Fourth Member of the Big Three? | Tennis History (2026)

What if I told you that the tennis world as we know it could have been drastically different? That’s the question lingering in my mind as I reflect on Juan Martin del Potro’s career—a story of what could have been. Personally, I think del Potro’s tale is one of the most heartbreaking yet fascinating narratives in sports. Here’s why: it’s not just about a player who won a Grand Slam; it’s about a player who could have redefined an entire era of tennis.

The Unfulfilled Promise of a Giant

Del Potro’s 2009 US Open victory against Roger Federer wasn’t just a win—it was a statement. What makes this particularly fascinating is that he didn’t just beat Federer; he beat Federer at his near-prime. If you take a step back and think about it, this was a moment that screamed, ‘Here comes the next dominant force in tennis.’ But fate had other plans. Injuries, those silent career assassins, robbed del Potro of his momentum.

From my perspective, del Potro’s physicality and mental toughness were unparalleled. His serve was thunderous, his forehand devastating, and his belief in big moments was unshakable. One thing that immediately stands out is how he managed to go toe-to-toe with the ‘Big Four’—Federer, Nadal, Djokovic, and Murray—despite his injuries. His head-to-head record against them (20 wins) is a testament to his potential. What many people don’t realize is that with a healthier del Potro in the mix, the ‘Big Three’ might not have amassed their record-breaking Grand Slam totals.

The Butterfly Effect of Injuries

Injuries didn’t just derail del Potro’s career; they altered the trajectory of tennis history. In my opinion, this is where the story gets truly intriguing. Had del Potro stayed fit, the narrative of the 2010s would have been vastly different. We might have seen a ‘Big Four’ instead of a ‘Big Three,’ with del Potro as a consistent Grand Slam contender.

What this really suggests is that tennis is as much about timing and health as it is about talent. Del Potro’s injuries didn’t just cost him titles; they cost the sport a legend who could have challenged the dominance of Federer, Nadal, and Djokovic. A detail that I find especially interesting is how even today, the top players speak of del Potro with reverence—a silent acknowledgment of what he could have achieved.

The What-Ifs and the Legacy

Here’s where it gets speculative: if del Potro had stayed healthy, would he have joined the 20+ Grand Slam club? Personally, I think it’s entirely possible. His 2018 resurgence, where he reached the US Open final and became world number three, was a glimpse of what could have been. But just as he was peaking again, injuries struck. It’s hard not to feel a sense of loss for both the player and the sport.

This raises a deeper question: how do we measure legacy in sports? Del Potro’s career achievements—one Grand Slam, an Olympic medal, and a Davis Cup—are impressive, but they feel like mere footnotes to a greater story. What this really suggests is that sometimes, the greatest athletes are defined not by what they achieved, but by what they could have achieved.

A Sport’s Lost Opportunity

Tennis fans often debate the ‘greatest of all time,’ but del Potro’s story forces us to consider the ‘what ifs.’ If he had stayed healthy, would the ‘Big Three’ era look different? Would Stan Wawrinka or Andy Murray still be considered the ‘next best’? These questions don’t have answers, and that’s what makes del Potro’s story so compelling.

In my opinion, del Potro’s legacy isn’t just about his wins; it’s about the void he left behind. He was more than a player—he was a symbol of untapped potential. What many people don’t realize is that his impact extends beyond statistics. He showed us what tennis could have been, and in doing so, he became a reminder of the fragility of greatness.

Final Thoughts

As I reflect on del Potro’s career, I’m struck by the irony of it all. A player who could have altered tennis history is now remembered for what he couldn’t achieve. But here’s the thing: even in his unfulfilled promise, del Potro left an indelible mark. He’s a testament to the power of talent, the cruelty of fate, and the enduring allure of the ‘what if.’

Personally, I think del Potro’s story is a reminder that greatness isn’t just about winning—it’s about the potential to inspire, to challenge, and to leave us wondering. And in that sense, Juan Martin del Potro didn’t just alter tennis history; he became a part of it.

Could Juan Martin del Potro Have Been the Fourth Member of the Big Three? | Tennis History (2026)
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