Divergences can be happenstance as well. A flip of the coin can change the fate of a baseball team, just as much as any person (or victim of Two-Face).
Two baseball teams played in Nagoya as the league was getting ready to form; although it's a major metropolis, it's no Tokyo or Osaka and can't support that much professional play, so one of those two had to fold at the end of an early 1940's season. The remaining team was just known as the Nagoya club.
When the JPBO mandated nicknames for teams to participate in the league, the team decided to
opt for the Zodiac sign of their new team owner bring back the name of the team that ended play to participate in the Nihon League...
Nagoya Dolphins
Since the Nagoya-based club in the (redacted) borrows the colours and look of the Dodgers, I think it's only fair the Dolphins get to borrow from Miami's football club, adjusted to be a bit more primary-colour.
The mascot is a recoloured and adjusted from a Water/Flying porpoise Fakemon I found on
deviantART. Shrunk the fins and fixed the dorsal so it looks less like an airplane.
The font for the hat logo and shoulder on the home jersey is BankGothic, and inspired by the logo for CN Rail, rotated 180%. Jersey font is Courgette, one of the swooshier standards in EriqJaffe's uniform maker.
Only two uniforms here - home and road. Fear the teal.
EDIT: Went back and adjusted the primary logo so it looks more like a dolphin.