Zack Baun returns to New Orleans, where he mostly played special teams with the Saints, as a star linebacker preparing for the Super Bowl.

Back in the New Orleans Saints practice facility for the first time since he was a member of the team just a year ago, all Zack Baun could smell was nostalgia. Everything about the Eagles’ temporary practice site for the week of the Super Bowl — from the unidentifiable scent of the building to the familiar faces of the equipment staff and the athletic trainers — elicited memories