New York also has multiple teams, but fans' allegiances seem to be only for the Bombers - the New York Mets are one of only three professional baseball teams to not carry a single U.S. county.
The other teams without a spot on the map are the Oakland Athletics, who compete with their cross-bay rivals, the San Francisco Giants, and the Toronto Blue Jays, which is the only Major League Baseball organization not based in the U.S.