Born in Kaisariani, Kritikopoulos began playing football as a striker for local side G.S.

[1] In 1973, Kritikopoulos joined Olympiacos where he played until 1980, winning three Alpha Ethniki and one Greek Football Cup titles.

He finished his career with Apollon Athens F.C., retiring in 1981 at age 35.

[2] Kritikopoulos made 28 appearances and scored three goals for the Greece national team from 1969 to 1977.

[4] In 2002, Kritikopoulos died from a cardiac arrest whilst playing in a friendly match for Olympiacos' veterans in Andros.