New York has had four, though never more than three at once: the Yankees, (Brooklyn) Dodgers, Giants, and Mets.
When the other teams fans come cause the city is close to the home teams city
The Giants and Dodgers baseball teams and the Jets and Giants football teams
boise Idaho
Chicago has two teams, the Cubs and White Sox. -----Philadelphia had 2 teams between 1901-1954. Boston had 2 teams between 1901-1953. St. Louis had two teams between 1902-1953.
New York
London
There are four pro baseball teams in Missouri
New York.
the northeast
most of them have at least once
Chicago & New York
soccer because all the countries and then city players