NFL Commissioner Roger Goodell is weighing the potential for an international team.

"I would say that the markets outside the U.S. are very, very attractive," Goodell told CNBC in an exclusive interview. "And we've got pretty good coverage here."

The league has been expanding international play in recent years, with match-ups this season taking place in Brazil, Ireland, England, Germany and Spain. It's long seen success with games in London, in particular.

Goodell said standing up a London-based team was "possible," adding, "There are markets that could certainly support a team. We've always focused on, what are the competitive consequences of that? Can we manage that? And so every year we try to learn something from the international series."

The Minnesota Vikings are playing back-t

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