 He participated in the FIFA World Cup 1990 in Italy and in the 1994 FIFA World Cup in the USA and reached the quarter-finals, he also participated at the UEFA Euro 1996 in England, and UEFA Euro 2000 in Belgium and the Netherlands.In 2003, Lupescu acquired his coaching license at the German Sport University of Cologne.By the end of his active career, he was head-coach for a short period at FCM Bacău and FC Braşov in Divizia A till 2004, and was dismissed because of poor results.