Of the big four, here are the last teams to relocate:
NBA: Sonics franchise moves to Oklahoma City to become the Thunder
NFL: The Oilers franchise moves from Houston to Tennessee and become the Titans in two years
NHL: Whalers franchise moves to Raleigh to become the Carolina Hurricanes
MLB: Expos franchise moves from Montreal to Washington DC to become the Nationals
What's the first team that comes to mind when you think of a re-location, and what city do you think that team is going to move to?