BATON ROUGE, La. (AP) Reigning national champion LSU is bringing back Bo Pelini as defensive coordinator, the position he held when the Tigers won a national championship in the 2007 season.

Pelini, whose hiring was announced by coach Ed Orgeron on Monday, replaces Dave Aranda, who left the Tigers to take over as Baylor's head coach after LSU's victory over Clemson in the College Football Playoff final in New Orleans earlier this month.

"We are privileged to have one of the top defensive coordinators in all of football in Bo Pelini join our staff," Orgeron said. "Bo has had some of the best defenses in football during his career and we are looking forward to him bringing his tremendous amount of knowledge and expertise back to LSU."