Sometimes a team’s arena/stadium is inseparable from their identity. In English football, Anfield isn’t just where Liverpool play; it’s a fortress. Lambeau Field is no mere gridiron; the frozen tundra is lauded as a legendary locale, or it was before they installed a heated field. The old Yankee Stadium was as much a part of the team’s identity as pinstripes and winnings. The new Yankee Stadium? Let’s say it is equally reflective of what the current owners value most, and leave it at that.
In the NBA, Oracle Arena gave Golden State a championship edge even before they started winning championships.