Simplify the following text for a Grade 7 native English-speaking person.
Original: Gheorghe GicÄ Popescu ( born October 9 , 1967 in Calafat ) is a former Romanian footballer who played as a defender , and was a key part of the Romanian national team in the 1990s .
Simplified: Gheorghe Popescu ( born 9 October 1967 ) is a former Romanian football player . He has played for Romania national team .