In its broadest sense, sport is any game or leisure activity, based on strict regulations and which seeks to improve the physical and mental well-being of human beings.
Set of athletic competitions and related activities.
www.iec.cat (Institut d’Estudis Catalans):
Any bodily exercise of agility, dexterity or strength, which is practiced individually or in groups, with playful or competitive intent and following established rules.
… but mostly, it’s just football. There are more sports !!