The first domino in Clay Helton’s offseason revitalization plan for USC football fell Tuesday morning, and it came with a true Trojan casualty.

Defensive line coach Kenechi Udeze, an All-America defensive end on the school’s 2003 national championship team, announced on his Twitter account that he will not be back with the Trojans next season.

“For the last three years, it has been my privilege coaching you guys in more than just football,” Udeche wrote in a message aimed at his players. “I couldn’t be more happy with the growth of you guys and couldn’t be more excited with what is on the horizon in your careers. Unfortunately, I will not be here to see it. I’d like to thank Coach Helton and his family for my opportunity here. To the Trojan Family know that I will always bleed Cardinal and Gold and I thank you for your support!