2024 was an intriguing year for tennis, with plenty of memorable moments and controversy as well as several up-and-coming players establishing themselves at the top of the sport.

Talented trio Lorenzo Musetti, Jack Draper and Mirra Andreeva all reached the latter stages of a Grand Slam for the first time while Jannik Sinner, Aryna Sabalenka and Carlos Alcaraz continued to dominate the major honours.

As always, tennis delivered plenty of drama and excitement, and after a brief hiatus at the end of the year, the ATP and WTA action has resumed once again.

Here at Flashscore, we’ve shifted our focus towards the next 12 months, picking out 10 of the best under-25 players to watch out for in 2025.

Arnaldi showed plenty of glimpses of his potential this year, most notably reaching the semi-finals of the ATP 1000 event in Montreal with wins over Kei Nishikori and Karen Khachanov.

Having ended 2023 with a run to the fourth round at Flushing Meadows and Davis Cup glory with Italy, the 23-year-old found a good level of consistency in 2024, earning himself a spot inside the top 30 as a result.

With Sinner going from strength to strength at the top of the rankings and fellow Italian Matteo Berrettini still a major force on Tour, Arnaldi looks primed to join them at the top in 2025.

The 23-year-old Serb enjoyed a remarkable end to 2024, winning 10 consecutive matches to claim titles in both Cornella de Llobregat and Guangzhou.

Having also made her mark in the majors with an eye-catching run to the fourth round in Roland Garros, Danilovic will surely fancy her chances of breaking into the top 50 in the near future. 

Having been ranked outside the top 200 at the start of January, Sun put together an incredible, record-breaking campaign, which culminated in the Kiwi star being honoured with the prestigious WTA Newcomer of the Year award. 

The 23-year-old’s highlight of 2024 came at Wimbledon as she beat eighth seed Qinwen Zheng and home favourite Emma Raducanu en route to a historic quarter-final berth.

Sun became the first New Zealand woman to reach that stage at SW19 in the Open Era, and after further success at the WTA 500 tournament in Monterrey, she broke into the world’s top 40 for the first time.

Mpetshi Perricard has emerged as one of tennis’ most exciting prospects after a hugely successful second half of 2024.

Having made it through to the fourth round at Wimbledon, the 21-year-old Frenchman carried his momentum into the final months of the season, claiming a maiden ATP 500 title in Basel.

Armed with a formidable serve and a dangerous one-handed backhand, Mpetshi Perricard has all the tools to keep rising through the rankings at the start of 2025.

The 19-year-old proved to be a real threat in 2024, defeating Andy Murray, Andrey Rublev and Gael Monfils on the way to his maiden Tour final in Doha before being voted the ATP Newcomer of the Year.

Mensik might not have won a title or progressed beyond the third round at a major yet, but he finished the year at an impressive career-high 48, making him the youngest men’s player in the top 50.

The big-serving Czech stands at 6’4”, and with a bruising topspin forehand that can quickly take control of rallies, he has the weapons to trouble any player in the world.

Kostyuk has been an ever-present on the Tour since her debut at the Australian Open in 2018, where she became the youngest player to win a main-draw match at the tournament since Martina Hingis in 1996.

Still at the tender age of 22, the Ukrainian has enjoyed steady progress throughout her early career, reaching at least the third round in all four majors as well as winning the WTA 500 title in Austin.

Sitting at 17th in the rankings, Kostyuk is well-placed to go deep in the slams next year as she looks to fulfill her potential and establish herself as a major force in the top 10.

The top-ranked Czech in men’s tennis had a year to remember in 2024, winning mixed doubles gold at the Paris Olympics as well as recording wins over Novak Djokovic and Alcaraz on the singles court. 

Machac’s consistency on Tour helped him achieve a career-high ranking of 25, while he progressed to the third round at three of the four majors. 

The 24-year-old will be keen to go at least one step further in 2025 as he looks to break into the top 20 and reach the latter stages of a Grand Slam.

Having started the year with a stunning victory over world number one Iga Swiatek at the Australian Open, Noskova continued to impress throughout 2024, breaking into the top 25 for the first time.

The 20-year-old is one of several up-and-coming Czech players on Tour, with Brenda Fruhvirtova, Linda Fruhvirtova and Sara Bejlek all showing plenty of potential. 

However, it’s Noskova who looks to be the clear front-runner, having already claimed a significant title in Monterrey as well as notable wins over Swiatek, Ons Jabeur and Maria Sakkari.

Shnaider is the highest-ranked player on the list, with the Russian sitting 13th in the world after a superb breakout year. 

The 20-year-old has quickly established herself as a force to be reckoned with in the sport, picking up titles on all three surfaces including the prestigious WTA 500 crown at Bad Homburg.

Shnaider was the only player on the WTA Tour to achieve that feat during 2024 and she’ll be desperate to carry that kind of form into the majors next year as she looks to progress beyond the fourth round for the first time.

Fils takes the number one spot on our list after a brilliant 12 months, in which he won two ATP 500 titles and rose to a career-high ranking of 20.

The Frenchman impressively saw off Holger Rune and Alexander Zverev en route to the Hamburg crown before battling past compatriot Ugo Humbert to win in Tokyo.

Fils’ best performance at a major was a run to the last 16 at Wimbledon, so the 20-year-old showstopper will look to build on that in 2025 with his captivating brand of tennis.