In Summer 2008, Addy made his first international move to Europe, from a Ghanaian Club - International Allies FC being signed by Danish SAS Ligaen club Randers FC.
On 1 February 2010 the Ghanaian U-20 champion joined Portuguese top club FC Porto from SAS Ligaen side Randers FC for €800,000, signing a three ½ year contract [REF].