He started with track and field sports but when he came to Athens in the early 1910s, he joined the football club PPO (later to become PAO).
He is considered the man who had the idea of adopting the trefoil as the official emblem of Panathinaikos.
Papazoglou was also a great figure in the National Resistance during World War II.
He joined the resistance group of Jerzy Iwanow-Szajnowicz – an athlete of Polish origin of Iraklis Thessaloniki.
With some external help from the naval base, the group succeeded in destroying three German airplanes and sinking three small warships.