Erdem began his international career with the
Turkey U21 national team in 1991, scoring one goal in 10 caps. He participated in the Akdeniz Cup with the Turkish Olympic team in 1993, and earned his first
senior team cap in 1994. Two years later, Turkey qualified for
Euro 1996. He was called up, but
Turkey didn't achieve any points. An exceptional moment of his international career came during the
UEFA Euro 2000 qualification, he netted three times within three minutes against
Northern Ireland. Turkey qualified and Erdem was included in squad. He was a significant part of the team, especially in a winning clash against co-host
Belgium. During the match, he was fouled many times and caused a red card for
Filip De Wilde. Turkey qualified to the next round, but lost to
Portugal. Erdem missed a penalty in the 46th minute. He took a part at
2002 FIFA World Cup as well, but he didn't play much. His senior international career lasted from 1994 to 2003, where he scored 11 goals in 60 appearances. ==Coaching career==