Jannik Sinner or Carlos Alcaraz: Former World No. 1 from US reveals who will have a greater legacy?

As Jannik Sinner and Carlos Alcaraz continue to dominate the 2025 French Open, a former World No. 1 shares his honest take on who could leave a greater legacy in the world of tennis.

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Jannik Sinner or Carlos Alcaraz: Former World No. 1 from US reveals who will have a greater legacy?

Jannik Sinner and Carlos Alcaraz during the French Open 2025 (Images via Getty)

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Both Carlos Alcaraz and Jannik Sinner have advanced to the quarterfinals of the 2025 French Open, fueling debate over their long-term dominance.

A former tennis legend evaluates their contrasting styles and consistency in predicting who might build a more lasting legacy.

As the French Open intensifies, two of the brightest young stars in tennis—Jannik Sinner and Carlos Alcaraz—are commanding global attention. Both have made it to the quarterfinals this year, and the debate over who will leave a more impactful legacy continues to gain momentum. Now, former World No. 1 Andy Roddick has weighed in on the conversation, offering a thoughtful—if cautious—take on the future greatness of the two players.

Rising giants of the game

Jannik Sinner, who currently sits atop the ATP rankings, has been in phenomenal form in 2025. After winning the Australian Open earlier this year and continuing his dominant streak on clay, many are tipping him to win the French Open as well—an accolade that would further solidify his standing.

Carlos Alcaraz, meanwhile, is not far behind. The Spaniard captured the 2024 French Open title and has consistently shown brilliance on all surfaces. While he continues to trail Sinner slightly in the rankings, his explosive style and flair have drawn comparisons to Rafael Nadal and Roger Federer.

Andy Roddick’s Perspective: Jannik Sinner edges ahead

Andy Roddick, the last American man to win a Grand Slam (US Open 2003), offered his insights on a recent episode of Served with Roddick. When asked who between Sinner and Alcaraz would ultimately have a better career, Roddick candidly admitted:

“I don’t know is the answer. My thing would just be on their early things we have seen with Carlos Alcaraz and injuries. I don’t know how a body moves that fast for 15 years.”

Drawing a parallel with Rafael Nadal’s early injury concerns, Roddick highlighted his own earlier doubts about Nadal’s longevity—a prediction that proved wrong. Still, when pressed for an answer, Roddick leaned slightly toward Jannik Sinner.

“I would go Sinner just because I can see him doing the same algorithm. I view him as the piece of software. Input and output. With Carlos I am just like—he is an artist. Is he going to get tired of it?”

Andy Roddick emphasized that Sinner’s consistency and methodical approach might give him an edge in the long run. He characterized the Italian as someone who thrives on routine and reliability, while Alcaraz, a more instinctive and flamboyant player, could face burnout.

“I would go Sinner just because it seems like every Tuesday is the same. But neither would surprise me, I say that with zero confidence.”

A rivalry worth watching

Whether it’s Jannik Sinner’s clinical precision or Carlos Alcaraz’s dazzling creativity, tennis fans are witnessing the dawn of an era that could rival the great rivalries of the past. Both players have the tools to dominate the sport for years, and their contrasting styles make this rivalry even more compelling.

As the French Open unfolds, and careers progress, the tennis world will be watching closely—not just for titles, but for the building blocks of legacy.

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