Gov. Brian Sandoval on Monday asked who would pay for the necessary upgrades to freeways and streets leading to a 65,000-seat domed football stadium proposed by Las Vegas Sands Corp., Majestic Realty and the Oakland Raiders. With a site recommendation anticipated as soon as Aug. 25 among four potential finalists, Sandoval said that he wants to know how traffic would be impacted by games, concerts and other big-ticket events held at the proposed stadium. “This is serious,” Sandoval said Monday during a meeting held by the Nevada Department of Transportation’s board of directors. “I’m going to need the information in...