context: After his playing days were over, he became the coach of River Plate, where he won several national titles.
source: Passarella held to close friend Américo Gallego as assistant coach.
reference_original: Passarella tenne l'amico stretto Américo Gallego come assistente allenatore.
reference_flipped: Passarella tenne l'amico stretto Américo Gallego come assistente allenatrice.