football{soccer} is the most popular sport there
soccer is the sports that has most pro leagues. It even has a World cup.
sport management and marketing agencies
Depends what sport, most take part in Stadiums or Arenas.
you shouldn't. they are not physically or emotionally ready for competing professional sports. most teenagers cannot physically cope with the strain the professional sport put on them.
because states with the most population have most sport teams and California is the biggest state in population
For kids' sports, it is. Polo, F1 racing, golf, NASCAR racing, sailing are the most expensive overall.
the most unknown sports like water polo or something...
Well it depends what sport you are talking about. Most professional sports players get paid between 1million and 2millions dollars per year.
Rugby, American football, and soccer are considered the three most aggressive professional sports in the world. This answer is more of an opinion than a fact.
The NFL has way more members(by that you mean players) than any other sport.
CyclingCycling is the sport in which Luxembourg has had most success at a professional level, and is one of the main participatory sports amongst the general population. Thank You for asking At WikiAnswers