NFLPA president JC Tretter rips into the condition of Soldier Field and claims NFL must 'do better'
NFL players union president blasts Soldier Field conditions
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NFL field surface intel: Grass vs. turf, owners, changes - News Wonderland
NFLPA president JC Tretter rips NFL's Soldier Field standards
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NFL players union president blasts Soldier Field conditions
NFL players union president blasts Soldier Field conditions
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