The motive of this book, as the first of the Pro-Tour series, is to highlight the critical nature of mental composure within professional Tennis on the Pro-Tour. Without having full grasp of your composure, you are always vulnerable to breaches to your game and will most likely be susceptible to threats from your opponents. We discuss the three forms of mental composure and the effects of it on your Tennis. Then, we cover the relationship between mental composure and the Pro-Tour journey. In order to effectively manage your resistance, you must have a comprehensive approach to your game development. We highlighted how you can view mental composure when it comes to Tennis and the significance of having it within your training, matches and your career as a whole. If you use this information and ask yourself the right questions about your career, you can find how this book can help you unlock something new in all directions and angles. Keep in mind that you must integrate your thoughts, questions and curiosity, along with what we share in this book, to create a good equilibrium of mental composure for yourself.