Fox Sports, February 2, 2017
“U.S. players have been pretty clear on their preference to play on grass. While not all hate playing on artificial surfaces, they’ve made it clear that they prefer natural surfaces.”
“Former U.S. manager Jurgen Klinsmann especially hated [synthetic] turf and did most everything in his power to keep his team from playing on it. Even new U.S. boss Bruce Arena has been critical of the surfaces before.”