improve Your Tennis Performance
Personalized fitness and mental coaching designed to develop athleticism, mindset, and resilience on the court.
// OUR APPROACH
Developing the athlete behind the player
Tennis is one of the most physically and mentally demanding sports in the world, requiring players to develop much more than technical skills. A strong foundation built through physical preparation, mental training, and consistent habits plays a vital role in supporting long-term player development.
At My Tennis Fitness, we help players build the physical and mental qualities needed to elevate their game. Through personalized coaching, we focus on developing strength, speed, power, agility, endurance, and the mindset needed to handle challenges, stay focused, and continue improving on and off the court.
Every player’s journey is different, which is why our approach is tailored to their age, experience, and individual needs. Through online coaching, we support athletes wherever they are, providing the guidance, structure, and tools they need to build a stronger foundation for long-term development.
// OUR SERVICES
personalized coaching for tennis players
Physical preparation and mental strength both play a vital role in helping players perform, adapt, and compete at their highest level.
We offer two individual coaching services: Strength & Conditioning Coaching, which develops the physical qualities needed for tennis, and Mental Performance Coaching, which strengthens the mindset and habits that influence performance. Both services are delivered online, tailored to each player's individual needs, and can be combined for a more comprehensive approach.
Strength & Conditioning Coaching helps players develop the speed, agility, power, and movement quality needed to meet the physical demands of tennis, while Mental Performance Coaching focuses on building concentration, resilience, discipline, and the ability to navigate challenges and setbacks.
// Meet the Founder
A coach with purpose
“Anyone can design a workout that leaves you exhausted. The real skill is creating training that improves performance.
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For 16 years, I competed as a professional handball player, playing for clubs across Europe, Asia, and Africa. Those years gave me firsthand experience with the commitment, discipline, and pressure that come with professional sports, shaping the way I coach today.
My coaching journey began in handball before expanding to work with the general population. Seven years ago, I specialized in tennis, where I have worked with players at every stage of their development, from juniors to ATP and WTA professionals.
Throughout my career, I have learned that more training is not always better, and training without purpose rarely produces the results you're looking for. What has worked best for my players is a systematic approach that meets them where they are, builds on their strengths, and addresses areas for improvement, with a focus on long-term development rather than short-term gains.
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// introducing
Not just a bag. A complete training system.
The idea behind this bag was simple: players should be able to continue their training wherever tennis takes them. Created from real-world experience in competitive sports, Tennis Performance Kit was designed to solve a common challenge during travel and tournaments—limited access to equipment, facilities, and structured physical training.
The bag includes essential training equipment such as a jump rope, balance pad, cones, and resistance bands, along with a complete training program designed specifically around these tools. By scanning the QR code, players gain access to guided exercises and workouts they can complete anywhere. Together, the equipment and training program provide everything players need to stay prepared, remain consistent, and continue developing their physical performance wherever they are.
// Tennis fitness guide
A progressive approach to developing young players
Created for junior players aged 5–18, this progressive tennis fitness system provides a structured approach to physical development at every stage of the player journey.
The e-book combines tennis-specific fitness principles with age-appropriate recommendations, helping players, parents, and coaches understand what to develop, when to develop it, and how to create the foundation for long-term performance.
// testimonials
trusted by 400+ tennis players worldwide
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Nikola has done an exceptional job with my players and has become a key part of their development. He is extremely professional, reliable, and deeply committed to his work. Nikola genuinely cares about the players he works with, consistently going above and beyond to support their progress. I have complete trust in his work.
- Stefan Sterland Markovic, Elite Performance Tennis, London, UK 🇬🇧
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Since starting to work with Nikola Zujic, we have seen clear progress in our players. Most importantly, the players themselves feel the difference and consistently share very positive feedback. That speaks volumes about the quality and impact of Nikola’s work. We are very happy with the collaboration and look forward to continuing it in the future.
- Grega Žemlja ( Former ATP no 43) , Head Coach of Grega Žemlja Tennis Academy, Kranj, Slovenia 🇸🇮
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I've been working with Nikola for a few years, and my fitness has improved a lot! His app keeps me on track, and he's always available to adjust my plan or answer questions. I'm happy to continue working with such a great coach!
-Elena Malygina, WTA Player, Tallinn, Estonia 🇪🇪
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Best thing about working online is that you can always keep working, on tournaments or at home. Having workouts ready for you in the app, keeps you on track and discipline. No matter which part of the world I am, always easy and efficient communication and feedback from Nikola.
-Justina Mikulskytė, WTA Player, Šiauliai, Lithuania 🇱🇹
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I would like to express my gratitude for Nikola’s coaching and guidance with my fitness plan. I see a significant change in my game as i feel stronger, faster and more fit on the court. That allows me also to think clear and make better decisions also after the match is going in to the third set. I also like that Nikola’s plan is rich on variation with the exersices that way i don't train always the same but there is always a new challenge for me. I really appreciate his help and look forward to train with him in the future.
-Alexander V., Recreational prayer, Maribor, Slovenia 🇸🇮
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I play competitive tennis and coach in Finland, so staying in top physical shape is essential for my game. Training with Nikola Zujic has been fantastic. Every session is engaging, varied, and adapted to help me stay healthy, prevent injuries, and perform at my best. Nikola also emphasizes the importance of nutrition and recovery, which has made his coaching an important part of my lifestyle. I truly believe that investing in your fitness is an investment in yourself.
-Jan Tiilikainen, Grani Tennis Head coach, Kauniainen, Finland 🇫🇮
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I’m an IT professional and passionate tennis player from Finland, always looking to see how far I can take my game. Since joining Nikola Zujic’s program, I’ve noticed real improvements in my performance on court. My endurance has increased, I feel stronger and quicker, and I’ve been able to stay healthy and avoid injuries. Training with Nikola has been an excellent experience and has made a noticeable difference in my game.
-Ville H., Recreational tennis player, Helsinki Finland 🇫🇮
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It is difficult to put into words how much Nikola has contributed to Una’s development, both as a tennis player and as a young athlete. Since working with him, she has become stronger, faster, more explosive, and significantly more resilient during long tournaments while staying healthy and able to train consistently. What truly sets Nikola apart is the way he motivates young athletes—he demands hard work while creating an environment where players enjoy pushing themselves. He builds confidence, discipline, and resilience, while genuinely caring about every athlete and helping them reach their full potential. Without doubt, Nikola has been one of the most important people in Una's tennis journey.
-Mario A., parent of a junior player, Swindon, UK 🇬🇧
