And what city is that? Did you, as a former citizen of Dallas think it was YOUR team?
Actually, I think one tends to adopt the closest pro team in the state or region. Since we are going to only have one.. it won't be too difficult!

For example I grew up in the Bay Area..

The San Francisco 49er's have always been MY team regardless of the fact that I was about 40 miles away.

(Oakland Raiders, not so much)