The New York Times has reported the turf at Green Bay's Lambeau Field hasn't been frozen during a football game for more than 40 years. Lambeau Field is popularly known as the "Frozen Tundra." "It's just like playing in the summer on the grass," Packers offensive lineman T.J. Lang said. "It's never hard, it's never frozen." According to The Times, the ground at Lambeau Field has been heated since 1967 when the franchise installed electric coils underneath the playing surface to keep the ground soft in frigid conditions.