It is possible to play pain-free tennis for the rest of your life. One of the prerequisites is improving your fitness. However, it is not just any fitness. It needs to be mindful, purposeful, and perfectly suited for you. Nobody can tell you what is perfectly suited for you, only your body can. Listen to it because it will ask for what it needs. In your pursuit for maximum fitness and tennis performance, you need to be aware, patient, and disciplined. Carry this little book with you always and reread the chapters often. Each time you will discover something new. Learn to understand your body. Every exercise you do should be performed with the goal of increasing awareness of your body, and gradually building a new relationship with it. Learn how to free up the tightness and how to balance your strengths. The less pain you experience, the healthier and more functional you are, and the more your energy will increase. Treat the moments of stretching and myofascial release as time for meditation, relaxation, and introspection. Create daily routines that fit your lifestyle and treat them as essential for your fitness, well-being, and tennis performance. Think of your health and fitness in the long term. Be patient and disciplined in applying the new ways of exercising and treating your body. Remember that even modest effort applied over the long term will bring excellent results. Therefore, do not postpone your fitness until tomorrow and start today, even if it is just a little bit. Treat your body with respect and love. Treat the fitness as one of the necessary elements of your tennis game. Become fit for tennis and you will become fit for life, and tennis will be in your life forever. Practice your tennis fitness, for the love of it