Update on NFL natural grass fields
How State Farm Stadium field is prepared for the Super Bowl
Chiefs coach Andy Reid blames Cardinals' stadium turf for injuries
How State Farm Stadium field is prepared for the Super Bowl
The process of re-sodding the field - State Farm Stadium
State Farm Stadium gets new technology just in time for the Super Bowl
Super Bowl sod going down at Levi's Stadium – East Bay Times
Longtime groundskeeper explains why Super Bowl 57 field was slippery
Turf time: Ranking the best and worst fields in the NFL - Sports Illustrated
State Farm Stadium Turf Time-Lapse
Spartan Stadium getting new playing surface for 2019 season - Turf
Super Bowl LVII: How the NFL prepared grass turf in the desert
The process of re-sodding the field - State Farm Stadium
Super Bowl's grass turf required nearly 2-year process
Eagles Super Bowl loss to Chiefs, reaction to late penalty, free agents and offseason schedule