FIFA spared no expense to ensure every World Cup game will be played on grass. NFL players are wondering why their league won’t do the same.

FIFA is spending $3.8 billion on custom hybrid grass pitches across 16 World Cup stadiums, converting artificial turf venues with eight years of turf

FIFA is building temporary natural-grass fields meant to play consistently across 16 stadiums in three countries

U.S. scientists have spent years prepping for the World Cup—and trying to keep bad turf from ruining it.

Showpiece event will take place at stadiums more accustomed to NFL and artificial turf