[bombastry]

I'm not sure why Sartre is quoted in Italian here, but this seems to be a spurious quote all the same. I could only find two sources with a version of that quote in French and neither had a citation of the original source. In fact, the only real quote from him I could find on soccer was «Au football, tout est compliqué par la présence de l'équipe adverse» ("In football, everything is complicated by the presence of the other team.").

Interestingly, during my search I found an apt quote for this discussion from another 20th century French philosopher. Camus once said «Ce que je sais de la morale, c'est au football que je le dois» ("What I know about morality, I owe to football"). I guess he would be missing the point here too.