Have you entered "NASL" into Google lately? No? Do it now and there is a good chance you'll be surprised by the fact that there is a third league that goes by that name.
Most American soccer fans are familiar with the old NASL which ran from the 1960's to the early '80s and the second division league that currently operates under that name. But there is also something called the North American Starcraft League which, according to its website, "was established to foster the prominence of esports and professional Starcraft 2 play in North America through highly visible organized and invigorating competition".
Finally, a league to out-obscure the American second division. Thank you Starcraft fans.