Currently, the most popular game in the world is definitely football, a complex game of various moves, technical, tactical and physical requirements, and because of that the structural complexity criterion belongs to the group of polystructural acyclic movements, and it is very interesting to us because it requires from the players a high level of fitness preparation, technical and tactical training, psychological stability, all kinds of social aspects of behavior etc. Professional player must have all these things to be able to perform all kinds of patterns by the proper technique, a lot of times and most importantly with high intensity throughout the game. During the soccer game, a player performs a lot of different activities with and without the ball. When performing these activities, it is often in contact with the foot only with one foot, that is, there are seldom bilateral movements, from which we conclude that the presence of such content in football training is needed. Considering that we learn from the game what we need to train, this study will show and explain the importance of strength generally in sports, included structure of performance (power and strength component) and examples of predominantly unilateral type exercises and training in football.