Santos was selected to the team on Monday.
"When you watch David on tape it takes about two plays to locate him," said O-D's Artie Gigantino. "He is a great hitter and an outstanding football player. He will be joined in the Offense-Defense All-American game, sponsored by Offense-Defense Football Camps, by some of the nation's top players. Coach Pelini and the Nebraska staff are getting a future Blackshirt great."
Santos is a three-star, ranked 44th at outside linebacker by Scout.com.
He committed to Nebraska in July.