NFL Must Replace Artificial Turf with Natural Grass to Protect Players
Field of nightmares: Inside the NFL, player divide over playing surfaces - The Athletic
A History of the NFL in 95 Objects: Artificial Turf - Sports Illustrated
Albert Breer Discusses The NFL's Artificial Turf Problem
From AstroTurf to 'frankenturf': Inside the NFL's behind-the-scenes battle to fix its turf problem
Grass Field Rolls In At University Of Phoenix Stadium
NFL news: Players call for league to abandon turf for natural grass
Playing On Turf Requires Precautions And Provides Challenges
Nancy Alderman on LinkedIn: From AstroTurf to 'frankenturf': Inside the NFL's behind-the-scenes battle…