SAN FRANCISCO (KRON) — In an interesting development in the ongoing Oakland Raiders to Las Vegas discussion, team owner Mark Davis is possibly hitting a bump in the road on his way to Sin City.

And it stems from the one person he wouldn’t want any problems with–the man bankrolling a chunk of this entire project.

Casino mogul Sheldon Adelson is the man that has pledged $650 million to fund a stadium in Las Vegas.

But he is not giving away that money out of the goodness of his heart.

There is an agreement between him and Mark Davis, but apparently, Adelson is unhappy with their negotiations.

And he is open to backing out of the deal entirely.

If Adelson does indeed decide to walk away from the table, that could scrap the deal entirely.

As of now, the next step is the project will be presented to NFL owners, who will vote on it for approval.