Background
He was born in Florina, Greece.
He was born in Florina, Greece.
Konstantinidis played as a defender or left winger for most of his career, earning the nickname Σβούρας (spinning top) for his quick dribbling in his youth. During 2010 Konstantinidis took the position of the Technical Director to PAOK Football Club, succeeding Zisis Vryzas. He has played for many clubs in Greece starting his career with AEK Athens in 1993, but did not make a single appearance.
He was on loan to Association for the Study of Internal Fixation Kavala for two years, and then spent two years at Apollon Athens.
He signed with PAOK Football Club in 1998 and stayed there for four years. He topped his game and made himself steady in the starting eleven as a left winger where the fans loved him.
Due to the club"s financial problems he was sold to where he stayed for three years, making over 60 appearances before returning to PAOK in 2005. In his career he made 175 league appearances with PAOK, scoring 25 goals.
He also captained PAOK during his second stay in Thessaloniki.
In the summer of 2009, Konstantinidis fell out of favor in coach Fernando Santos" plans, and so signed a deal with, continuing his career for the Cretan side in Beta Ethniki.