Abstract
Today, it is difficult to deny that sport takes a considerable importance in our society. An importance which can be characterized at several levels: economic, social, or even cultural. Thus, we can assist different sports events all the year round, but also do our Sunday jogging, or go to the closest shopping centre to buy the last shirt of the star that has just joined the team which we support. Sport is everywhere: on the TV at every hour of day and night; on the walls of the city, the back of buses or back of newsstands, in our cupboard( shirt, racket, sporting shoes) and it is also a part of our landscape where playgrounds and sports centre are increasingly numerous. But if there is a level at which sport is important, it is at economic level. Indeed, it has become a real phenomenon of society; it is a source of development as far as new employment, research and important technological applications are concerned. We may note that sport is the third world legal industry after the oil end the automobile sector.
