Thursday, Aug 30, 2007 By Casey Pearce, Chargers.com As Chargers Head Coach Norv Turner sat at his desk Wednesday night reviewing film of his team’s first three preseason games, he watched his starting quarterback spread the ball around as he completed nearly 70 percent of his passes with no interceptions in 49 attempts. He also watched his All-Pro tight end haul in seven passes for 113 yards as he showed that he and his quarterback are communicating extremely well. Turner liked what he saw from two of his offensive leaders and decided that it would be best to keep Philip Rivers and Antonio Gates on the sideline tonight as his club closes the preseason against San Francisco. Turner would like to give some of his younger players more opportunities to see the field, including second-year signal caller Charlie Whitehurst, who did not play last Saturday at Arizona. Fourth-round draft pick Scott Chandler, who has had a solid summer, will also benefit from an increased workload Saturday night, as will Kelly Griffeth, a tight end who spent much of the 2006 season on the Chargers’ practice squad.