Based on the fact that soccer is a choral game, but in which the individual is decisive in the result and also in the collective performance of the group, within each team there are always some players destined to do a job that, on many occasions, is dirty, that does not attract the attention of the stands and that, even, goes unnoticed by the inexperienced fan. It is these players who assemble, so to speak, a team and, in most encounters, the future of the game and, consequently, the result depends on their state of mind, their inspiration or, fundamentally, their success. They are, we could define them, as the “motors” of a team. If they have bad flu, but if everything works (or almost everything, because football is quite unpredictable) it usually goes smoothly. .