Podolski struck twice against his old club.
"It was not so easy [to score against Cologne]. I played a lot of games for a lot of years in Cologne.
"They were my club when I was a young boy, so it is not easy to score two goals against your team.
"You see after the game that [the fans] still love me! I was very surprised about the Arsenal fans because there were a lot in the stadium. I heard them cry my name and I was very surprised!"