For years, Matteo Arnaldi and Flavio Cobolli have been following remarkably similar paths.
The two Italians grew up competing against one another in national tournaments, practiced together throughout their development, and eventually became teammates on one of the strongest Davis Cup teams in the world. Now, they will meet in the biggest match either has ever played, becoming the first Italian men to face each other in a Roland Garros semifinal.
What makes the matchup particularly compelling is that their careers have mirrored one another while rarely progressing at the same pace. When Arnaldi broke through, Cobolli was still chasing. When Cobolli emerged as one of the ATP Tour’s fastest-rising players, Arnaldi was trying to rediscover the form that first made him one of Italy’s brightest prospects.
Their meeting in Paris feels less like a surprise semifinal and more like the latest chapter in a story that has been unfolding for years.
After Italy lifted the 2025 Davis Cup, Flavio Cobolli was one of the stars of the show, and I discussed his top-10 potential. It also made me think about the fascinating parallel between Cobolli and Matteo Arnaldi. Just a few years ago, Arnaldi appeared to be firmly ahead in the race to become Italy’s next star. Now, the two have seemingly traded places on the Italian tennis ladder.
Arnaldi’s Breakthrough
In 2023, Arnaldi appeared to be the next Italian star.
While Jannik Sinner and Lorenzo Musetti commanded much of the attention, it was Arnaldi who quietly established himself as a fixture on the ATP Tour. He broke into the Top 50, reached the fourth round of the US Open, and played a significant role in Italy’s Davis Cup triumph. His victory over Alexei Popyrin in the final against Australia helped secure the title and reinforced the belief that he would be a major part of Italy’s future.
At the time, Cobolli was still looking for his breakthrough.
Cobolli’s Rise
That breakthrough arrived a year later.
Cobolli climbed into the Top 50, began producing consistent results at tour level, and gradually forced his way into Italy’s Davis Cup plans. As his ranking continued to rise, so did expectations.
What made Cobolli’s development especially impressive was how complete his game became. Both he and Arnaldi are exceptional athletes capable of defending for hours and turning defense into offense. For a long time, they looked like players with similar ceilings.
Over the last two seasons, however, Cobolli separated himself.
His point construction improved, his decision-making became more refined, and his forehand developed into a genuine weapon capable of ending rallies on any surface. The athleticism had always been there. The difference was that the rest of his game caught up.
The results followed, titles arrived and ranking points accumulated. By the start of Roland Garros, Cobolli was no longer viewed as a promising prospect. He was viewed as one of the best young players in the sport.
The Full Circle Moment
As Cobolli surged, Arnaldi’s career took a different turn.
Injuries, inconsistency, and a lack of momentum prevented him from building on his 2023 breakthrough. While Cobolli climbed, Arnaldi slipped down the rankings and entered Roland Garros outside the Top 100.
Yet his run in Paris has been a reminder of why he was so highly regarded in the first place.
After surviving a series of marathon battles and producing some of the most resilient tennis of his career, Arnaldi has returned to the spotlight at the exact moment Cobolli appears ready to take another step forward.
The rankings may now favor Cobolli, but their rivalry remains remarkably close. Arnaldi leads the head-to-head 3-2, and their most recent meeting came at Roland Garros just one year ago.
That is what makes this semifinal so fascinating.
Three years ago, Arnaldi looked like the future of Italian tennis. Today, Cobolli stands on the verge of the Top 10 and a Grand Slam final. Yet somehow, after years of taking turns breaking through, they have arrived at the same place at the same time.
For two childhood rivals and longtime teammates, it is the biggest stage either has ever shared.
