Kolovos started his career from
Apollon Larissa playing in
Delta Ethniki. In the summer of 1985 he was transferred to the
1985 Greek Cup winners
AEL alongside another young talent,
Vassilis Karapialis, and under experienced Polish coach
Andrzej Strejlau. Kolovos stayed at AEL for three years becoming a Greek champion in
1988.{{cite web|publisher=fosonline.gr|title= AEL 1987-88|url=https://www.fosonline.gr/podosfairo/superleague/article/4748/1988-h-anoixi-tis-larisas ==References==