SPARKS, Nev. (AP) — The operator of the world’s largest sportsbook in Las Vegas is expanding into northern Nevada this year as part of a collaboration with what will be the first new casino built in Reno-Sparks in more than a quarter century. Circa Sports secured a deal with Legends Bay Casino owner Olympia Gaming to operate a sportsbook at the property being constructed just east of Reno. The 80,000-square-foot casino will have table games, slot machines, video poker and multiple restaurants. It’s scheduled to open sometime this summer at the Legends at Sparks Marina along Interstate 80.