The development of sport, sports science and the sports industry have greatly influenced the demand and complexity of todays football. A good sport performance attracts the attention of a multitude of people for whom many players and clubs in professional football exist in economic and social terms. The requirements of todays football represent a great challenge for athletes who are expected to develop above-average tactical knowledge, technical skills that must be at the top level, conditioning abilities enviously developed, morphological characteristics in accordance with the trend and mental preparedness always at high level. If the above is not in perfect balance we can say that it does not meet the prerequisite for sport and football success and does not meet the requirements of today's sport where exciting, attractive and competitive content is expected by the viewers and the general population. For this reason, most athletes and coaches are looking for new solutions for improving sports performances, both at the individual - personal level and at the team level. Although football is a team sport, in which the main point lies on the team preparedness, team form and team success, individual quality and fitness preparation play a big role. Players on the field act as a team but also individually, so they should be coached in this way. The reason is that different forms of training programs do not work on every athlete equally, this is supported by the fact that the individual response of players to the same training program is not the same for all of them. A certain training program for some players can be well affected; such athletes can be called responders, while for some players it can be completely missed; so-called non-responders. For this reason, all abilities should be developed in the segment of individual or personalized training, but later they need to be coordinated and improved in the segments of team training and football competition. In this graduate thesis we will primarily deal with individual-personalized strength and conditioning training of football players in order to improve their personal performance and consequently the sporting performance of their team.