^ 
the World Series is actually named for a newspaper that originally sponsored the contest.
AFAIK, there's no 'world' cup of gridiron.
at least the rugby and cricket world cups are played by teams from around the world if not by the entire world like the football world cup.

the World Series is actually named for a newspaper that originally sponsored the contest.
AFAIK, there's no 'world' cup of gridiron.
at least the rugby and cricket world cups are played by teams from around the world if not by the entire world like the football world cup.