Yet, as it?s only club football here which inflames real passions, so performers like Giorgios Karagounis, Panathinaikos?s tricky playmaker, can look quite different propositions in the Champions League. So just how intimidating will it be for Arsenal? The old hands at Greece?s most famous club smile, reckoning that since they renovated the stadium, filling it with green seats and reducing the capacity to near 20,000, the ground has seemed a bit more antiseptic and, consequently, the fans a little less fevered.