The other two ongoing football threads got me thinking about this topic. Baseball, hockey, and basketball, the other three major North American team sports, have had success in other parts of the world. This includes domestic leagues in multiple other countries and continents, Olympic gold medals won by teams other than the US and Canada, players from other nations that play in the top North American leagues, and so on. Football, for whatever reason, has been unable to pull off that feat. What are some of the reasons for this?
Is it because the game requires a large number of competitors per team? Maybe it’s the higher risk of injury due to it being a collision sport? The set piece nature of the game as discussed in the other thread? Something else?