NFL stadiums converted turf to grass for the World Cup, frustrating Andrew Whitworth, who had long pushed for natural surfaces despite league resistance.
https://www.foxnews.com/sports/former-nfl-star-says-would-definitely-frustrated-nfl-letting-fifa-bring-grass-turf-fields
https://www.foxnews.com/sports/former-nfl-star-says-would-definitely-frustrated-nfl-letting-fifa-bring-grass-turf-fields