Gotham has a wide variety of sports teams like their Baseball teams, Gotham Knights and the Gotham Griffins. Their Basketball team, the Gotham Guardsman, Their Football teams the Gotham Wildcats and gotham Knights, and their Ice Hockey team, The Gotham Blades. The Gotham Knights baseball team colors are black and gold like the Knights football team. The Griifins team colors are dark green and white.
Anything is pure speculation at this point, there was a brief rumor the plot line will include a trade for a winger for Batman after Robin is concussed.