In 1905, after a season that saw 18 college players killed and more than 150 seriously injured, Pressident Theodore Roosevelt demanded that game's rules be changed or he would ban it. Let's say instead of 18 players killed it's 36, and Roosevelt just bans the sport on all college campuses throughout the nation. How does that effect the sporting landscape in the USA? Does Rugby (which American Football is loosely based off of) take it's place? It is also somewhat popular on college campuses? Keep in mind that today, American Football is the most popular sport in the USA but it is also declining in youth participation because of its danger.