In 1956, after the crackdown by the Soviets of the Hungarian Uprising, the Hungarian football team were caught away from home, and for two years, Fritz managed their games and provided the financial backing and in small measure, paid them back for having saved him from deportation to the Soviet Union. Walter received his last cap during the semi-final against Sweden in the 1958 World Cup, suffering an injury which ended his international career, and he retired from football in 1959.