The original soccer games have stretcher trucks to enter the stadium when a player is injured, how come it's gone now?

Mainly depends on whether the stadium is equipped with medical car equipment, generally encounter large and important tournaments or facilities are better stadium will have medical car. But there may be a medical car and do not use, generally speaking, should be in the players injured position away from the medical personnel distance, the use of stretcher interrupt the game time is too long when the most can play the role of the medical car.