(KRON) — NFL Commissioner Roger Goodell says the league has not made a determination about Las Vegas as the host of a team for the league.

Goodell is speaking to reporters on Wednesday at his annual news conference ahead of the Super Bowl, and a few early questions were related to the Raiders’ plan to move from Oakland to Las Vegas.

Goodell says there is “a great deal of work to be done” before that move could happen and that, in general, franchise “relocations are painful.”

“But if any key aspect is changed, the process could be slowed down,” Eric Grubman, the league’s executive vice president of business ventures, told The Associated Press.

Goodell said it was unlikely a casino owner could own a stake in a stadium, which would seem to disqualify Adelson anyway. About the more delicate question of whether it’s good business for the league, which has always disdained gambling, to stick a franchise in the gambling capital of America, the commissioner said the league is in touch with the reality that gambling “exists throughout our world.”

He also says the NFL needs to “make sure” there is a “fine line” between team sports gambling and the NFL.