In his debut at the third round of a Masters 1000 event, João Fonseca, an 18-year-old Brazilian rising star, takes on a formidable challenge at the Miami Open. The world number 60 from Rio de Janeiro squares off against Australia’s Alex De Minaur, ranked 11th globally, in a match scheduled for Monday at 8 PM (Brasilia time). Set to unfold at the Hard Rock Stadium’s main court in Miami Gardens, the clash will be streamed live on Disney+ and covered in real-time by ge, igniting excitement among tennis fans eager to witness the Brazilian’s ascent and the seasoned Aussie’s prowess.
Fonseca arrives at this matchup riding the wave of two standout victories in the tournament. In his opener, he outlasted American Learner Tien in a three-set battle, 6/7 (1), 6/3, 6/4, overcoming physical discomfort to secure the win. Then, in the second round, he dispatched France’s Ugo Humbert, ranked 20th, in straight sets (6/4, 6/3) in just 1 hour and 10 minutes. His steady play and the enthusiastic backing of the Miami crowd have bolstered his momentum heading into this pivotal encounter.
Alex De Minaur, meanwhile, enters the third round with confidence. After a first-round bye as a seeded player, the 26-year-old Australian defeated China’s Yunchaokete Bu, world number 69, 6/4, 6/4, on Saturday. With nine ATP titles to his name and victories over the likes of Rafael Nadal, Andy Murray, and Andrey Rublev, De Minaur poses a steep test for Fonseca, raising the stakes in this Hard Rock Stadium showdown.
- First third-round Masters 1000 appearance for João Fonseca.
- Alex De Minaur aims to repeat his 2024 run to the round of 16.
- A never-before-seen matchup in the professional circuit.
Fonseca’s Miami run stuns at just 18 years old
João Fonseca’s journey in the Miami Open has turned heads, showcasing not only his technical skill but also a maturity beyond his years. Against Learner Tien in the first round, the Brazilian dropped the opening set in a tiebreak and battled a mid-match health scare, yet rallied to win in 2 hours and 30 minutes with a gritty 6/3, 6/4 finish. The Hard Rock Stadium crowd, home to the NFL’s Miami Dolphins, erupted in support, marking the beginning of Fonseca’s imprint on the tournament.
Saturday’s clash with Ugo Humbert further solidified his breakout moment. Fonseca broke the Frenchman’s serve in the opening game, surged to a 2/0 lead, and sealed the first set 6/4. In the second, he repeated the early break and controlled the match with five aces and a 96% first-serve point win rate, closing at 6/3. His forehand, clocked at 181 km/h, left Humbert scrambling and underscored the Brazilian’s rapid development since their last meeting at the 2024 Davis Cup.
With this win, Fonseca became the youngest player to reach the third round of a Masters 1000 since Carlos Alcaraz did so in Paris in 2021, also at 18. The milestone highlights his potential, backed by four titles in 2025, including the ATP 250 in Buenos Aires and the Phoenix Challenger. Now, facing a seasoned opponent like De Minaur, Fonseca aims to cement his rise on the pro tour.
Alex De Minaur enters as favorite with proven track record
Alex De Minaur steps onto the court with a resume that commands attention. Born in Sydney to a Uruguayan father and Spanish mother, he picked up a racket at age four and turned pro in 2015. Since then, he’s carved out a steady career, peaking at number six in the ATP rankings in July 2024. Standing at 1.83m, De Minaur’s speed and defensive style have propelled him past tennis titans, making him a daunting foe for Fonseca.
In 2025, De Minaur boasts a 16-5 record, maintaining strong form. At the Miami Open, he advanced past Yunchaokete Bu in straight sets, delivering five aces and clutch breaks in the tenth game of each set. Yet, recent stumbles—like a fourth-round loss to Francisco Cerundolo in Indian Wells and an early exit to Marin Cilic in Dubai—hint at vulnerabilities Fonseca could exploit if the Brazilian sustains his aggressive edge.
De Minaur’s record against players outside the top 50 is stellar: 10 wins in 11 matches in 2025 and 24 victories in 27 over the past year. With Fonseca at 60th, the Aussie holds the statistical edge. Still, the Brazilian has already toppled established names like Andrey Rublev at this year’s Australian Open, keeping this matchup unpredictable.
- De Minaur: 80.4% service game win rate on hard courts over the last 12 months.
- Fonseca: 12 wins in 15 hard-court matches in the same span.
- First-ever clash pits experience against youthful drive.
Fonseca chases historic round of 16 spot against a top 15 foe
At 18, João Fonseca is enjoying a breakout 2025, with 22 wins in 26 matches—an 84.6% success rate that outpaces De Minaur’s 76.2% (16-5). While the Brazilian’s ATP-level experience is thinner (9-4 this year) compared to De Minaur’s seasoned resume, their contrasting paths collide Monday night as Fonseca vies for his first Masters 1000 round of 16 berth.
The young carioca has already navigated tough moments in Miami. Against Tien, he required medical attention between sets but fought back to win. Facing Humbert, he harnessed crowd energy—bolstered by South Florida’s Brazilian community—to dominate a top 20 player. Now, against De Minaur, Fonseca gets a shot at a top 15 scalp, a feat that would echo his upset of Rublev earlier this year.
Fonseca’s blistering forehand and fearless play could unsettle De Minaur’s defense. Against Humbert, his pace overwhelmed the Frenchman, and a similar approach might test the Aussie’s renowned retrieving skills. With the Hard Rock Stadium crowd behind him, Fonseca has a real chance to pull off an upset, though De Minaur’s consistency remains a high hurdle.
Match schedule and how to watch live
The Fonseca-De Minaur showdown is set for Monday, March 24, at the Hard Rock Stadium in Miami Gardens, Florida. Slated for no earlier than 8 PM (Brasilia time), the exact start may shift based on prior matches on the main court. Played on hard courts, the Miami Open ranks among the ATP’s elite events, drawing global eyes as it nears its decisive stages.
Fans can catch every moment live on Disney+, which streams the full tournament, while ge provides real-time updates on key plays and scores. Anticipation is building to see if Fonseca can notch another marquee win or if De Minaur will uphold his favored status en route to the round of 16.
- Date: March 24.
- Time: Starting at 8 PM (Brasilia time).
- Venue: Hard Rock Stadium, Miami Gardens, Florida.
- Broadcast: Disney+ (streaming) and real-time on ge.
De Minaur’s Miami history and recent tests
Alex De Minaur is no stranger to the Miami Open, having competed in five prior editions. His best showing came in 2024, reaching the round of 16 before bowing out to a top-tier opponent. This year, he’s aiming to match or exceed that run, putting pressure on him to handle Fonseca’s surging form in front of a lively crowd.
Despite a strong start to 2025—including a final in Rotterdam (lost to Alcaraz) and wins in Doha—De Minaur has hit bumps. In Indian Wells, he fell 5-7, 3-6 to Cerundolo in the fourth round after beating David Goffin and Hubert Hurkacz. Earlier, Cilic ousted him in Dubai’s first round. These setbacks suggest De Minaur, while elite, isn’t invincible, especially against Fonseca’s attacking flair.
The Aussie’s game hinges on defense and consistency, potentially vulnerable to Fonseca’s firepower. Over the past year, he’s won 80.4% of service games on hard courts but just 29.8% on return, offering Fonseca openings if he keeps his serve sharp and rallies bold. The matchup promises a tactical clash of styles.
Stakes for Fonseca and De Minaur
A win for João Fonseca would be more than a ticket to the Miami Open’s round of 16—it’d signal his arrival among tennis’s elite. His 2025 haul already includes Buenos Aires, where he beat Cerundolo (De Minaur’s Indian Wells conqueror), and Rublev’s scalp in Melbourne. Beating De Minaur would vault him into a Masters 1000 fourth round and boost his ATP ranking further.
For De Minaur, the match is a chance to solidify his top 15 status and deepen his Miami run. A victory would mark his 17th win of 2025, potentially setting up clashes with Taylor Fritz or Alexander Zverev later. His big-stage savvy will be key to stifling Fonseca’s momentum, though the Brazilian’s fearless play keeps the outcome uncertain.
Miami’s crowd, especially its Brazilian contingent, will turn the Hard Rock Stadium into a cauldron of noise. Fonseca, thriving on that energy, gains an edge, while De Minaur must tune out the roar to prevail. The stage is set for a thrilling tennis spectacle.
Fun facts about the matchup’s stars
Both players bring unique tales to the court. Fonseca, a Rio native, dominated the junior circuit before his 2025 explosion, claiming four titles. De Minaur, dubbed “Demon” for his tenacity, sports a tattoo of “109,” honoring his spot as Australia’s 109th Davis Cup player. These quirks add depth to their showdown.
- Fonseca ranks as the tenth-youngest ATP tournament winner ever.
- De Minaur has reached Grand Slam quarterfinals everywhere but Miami.
- Fonseca has 10 aces in two Miami matches; De Minaur has five.