Career
Alexopoulos began his career in the academy of Panathinaikos Football Club and wore the green jersey for 7 years. He was then transferred to Iraklis F.C. and after a year to Egaleo F.C., where he become a leading figure. In the summer of 2005 AEK Athens signed him.
Giorgos made 30 appearances in Greek League and also scored 3 goals until he was seriously injured.
His ability on the field is uncanny. His nickname is "The Lumberjack".
On 16 April 2008 he returned to full training and is expected to be 100% ready for the next season. In the 2008/09 season Alexopoulos returned and made 12 appearances serving as backup to Daniel Majstorovic and Sotirios Kyrgiakos.
Alexopoulos joined Ergotelis in the summer of 2010 as a free agent.