Remembering Dr. Z, a man who was truly ahead of his time

Throughout his nearly 30 years at Sports Illustrated, Paul "Dr. Z" Zimmerman reshaped how football fans understand the game. SI's Chris Stone remembers the legendary writer.

Throughout his nearly 30 years at Sports Illustrated, Paul "Dr. Z" Zimmerman reshaped how football fans understand the game. SI's Chris Stone remembers the legendary writer.