Fernando Farias - “Faster, stronger, higher, more technical”. This succinct formula perfectly sums up the development of foot- ball over the last few years. Speed is greater. This means not only running speed, but also and, in particular, the speed of execution of basic actions such as taking possession of the ball, passing or shooting. Duel situations are more hard-fought, forcing the player to develop far more athletic qualities than were called for in the past.