Fully Sport

In a sport defined by rankings, seedings, and predictability, tennis occasionally witnesses the unexpected. Grand Slams are meant to spotlight the elite — the Federers, Serenas, Djokovics — yet every so often, a relatively unknown name forces its way into the headlines. These moments of chaos, often served up by underrated players, not only disrupt tournament narratives but leave a lasting impression on fans and the sport itself.

What Makes a Player “Underrated”?

An underrated player isn’t always one lacking talent — it’s often someone overlooked by the media, underseeded in tournaments, or without a significant record on the biggest stages. Some have dealt with injuries, some hail from countries with limited tennis infrastructure, and others just haven’t had the chance to string together high-profile wins. But when everything clicks, they can shift the course of a Grand Slam.

Grand Slam Disruptors Who Made History

Emma Raducanu – US Open 2021
Ranked 150th and unknown outside the UK, Raducanu entered the US Open as a qualifier. What followed was historic — she won 10 straight matches without dropping a set, becoming the first qualifier ever to win a Grand Slam. Her clean baseline game, fearless composure, and ability to thrive under pressure stunned the tennis world.

Marco Cecchinato – Roland Garros 2018
An Italian clay-courter with no Grand Slam wins before the tournament, Cecchinato beat Novak Djokovic in the quarterfinals en route to the semis. His use of angles, drop shots, and tactical variation outmaneuvered top seeds and earned him a spot in Roland Garros folklore.

Aslan Karatsev – Australian Open 2021
Virtually unknown, Karatsev entered the main draw through qualifying and bulldozed his way to the semifinals. His flat, aggressive baseline game overwhelmed experienced opponents, making him the first man in the Open Era to reach a Slam semifinal on debut.

Jelena Ostapenko – French Open 2017
Ostapenko’s run was nothing short of audacious. Unseeded and only 20 years old, she won the title by defeating Simona Halep in the final, firing over 50 winners. Her fearless attacking style and raw power on clay made her one of the most surprising Slam champions of the decade.

Lukas Rosol – Wimbledon 2012
In a second-round match against Rafael Nadal, Rosol delivered a relentless performance of big serves and laser-focused aggression. The five-set victory sent shockwaves through Wimbledon and remains one of the biggest early-round upsets in tennis history.

Roberta Vinci – US Open 2015
With all eyes on Serena Williams’ potential calendar-year Grand Slam, Vinci entered the semifinal as a massive underdog. Using variety, slices, and tactical nous, she stunned Serena in a match that altered tennis history. Vinci’s performance was a masterclass in disrupting rhythm and exploiting pressure.

Francesca Schiavone – French Open 2010
Often overlooked in a field of bigger names, Schiavone relied on flair and tenacity to win her only major title. Her one-handed backhand and variety stood out on clay, proving experience and adaptability could overcome power.

What Fuels These Upsets?

These players thrived due to a blend of form, opportunity, and mental freedom. Without the burden of expectation, they played aggressively and instinctively. In some cases, early exits by top seeds opened up draws, giving them a pathway. Others simply peaked at the right moment — physically fit, mentally sharp, and ready to seize their opportunity.

Surface specialization also played a role. Clay often rewards strategic play and stamina, favoring outsiders like Cecchinato and Schiavone. Meanwhile, hard courts allow powerful hitters like Karatsev and Raducanu to thrive when their game clicks.

Why These Runs Matter

These disruptions are not just entertaining; they’re essential. They break the monotony of predictability and remind fans that Grand Slams are open competitions. They show that rankings can’t measure momentum or heart.

For the players, these moments can be career-altering. Many secured sponsorships, national attention, and wildcard entries for future tournaments. Some used the momentum to break into the top 10; others faded back into obscurity, but their impact remained.

Honorable Mentions

• Cori Gauff (Wimbledon 2019) – Defeated Venus Williams at 15, showing poise beyond her years.
• Ernests Gulbis (Roland Garros 2014) – Took down Federer, proving dangerous when focused.
• Sloane Stephens (US Open 2017) – Returned from injury to win her first Slam.
• Jerzy Janowicz (Wimbledon 2013) – Poland’s first Grand Slam semifinalist with a huge serve.
• Karolina Muchova (Roland Garros 2023) – Recovered from injury and outlasted top seeds with tactical variety.

The Aftermath: Rise or Return to the Shadows?

Some, like Ostapenko and Raducanu, struggled with the pressure of repeating their success. Others, like Vinci, bowed out gracefully after their peak. Karatsev and Cecchinato remained threats but never hit the same heights. These cases show that while talent can explode in a moment, consistency requires a different kind of endurance.