League officials occasionally kick themselves for lunging at sweetheart stadium deals for clubs in Chicago, Denver and Dallas that put stadiums far out in the suburbs.

WSJ: Why Not Manhattan?

Chicago (Soldier Field), Los Angeles (Dodger Stadium) and Vancouver (BC Place) will host the three other outdoor games next season.

WSJ: NHL, Winter Classic, Yankee Stadium: NHL Adding More Outdoor Games

Stadium naming rights are believed to have begun in Chicago, Illinois in 1926.

FORBES: Why Jerry Jones Still Hasn't Sold Naming Rights To Cowboys Stadium

Baseball fans at Yankee Stadium sang "Sweet Caroline" during Tuesday's game, while the Chicago Tribune featured the logos of Boston's main sports teams.

NPR: Celtics Back On Court, Offer Tribute To Victims