FILE - In this Dec. 24, 2015 file photo, fans hold up a sign for the Oakland Raiders to stay in Oakland before an NFL football game between the Oakland Raiders and the San Diego Chargers in Oakland, Calif. oakland Raiders owner Mark Davis says he wants to move the team to Las Vegas and is willing to spend a half billion dollars as part of a deal for a new stadium in the city. Davis upped the ante in a bid to move the team to this gambling city, appearing Thursday, April 28, 2016, alongside soccer great David Beckham and billionaire casino owner Sheldon Adelson before a committee studying the idea of a $1.4 billion stadium. (AP Photo/Marcio Jose Sanchez)
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