International Soccer League

The International Soccer League was a U.S. based soccer league which was formed in 1960 and collapsed in 1965. The league, affiliated with the American Soccer League, featured guest teams primarily from Europe and some from Asia, South America, Canada and Mexico.

Soccer in the U.S. was run by the U.S. Soccer Football Association (USSFA). As a member of the soccer's international governing organization, FIFA, the USSFA had the sole power in the U.S. to authorize the creation of a new league, and any league created without USSFA authority would be declared an "outlaw league". Any person playing in an "outlaw league" would then be banned from playing in any other league or team affiliated with FIFA, and as nearly every league and team in the world was affiliated with the world soccer body, this would effectively ban a player from playing soccer anywhere.