The New Orleans Saints have reportedly suffered another major blow to their linebacker corp as veteran Will Smith sustained a season-ending knee injury in the team's preseason win over Houston on Sunday Pro Football Talk reports.

It's the fourth significant injury at linebacker for the Saints this offseason. Victor Butler tore his ACL during mid-June at the end of organized team activities and will likely miss the 2013 season. Martez Wilson (elbow) and Junior Galette (leg) have also missed a significant portion of training camp with their respective injuries