Szczesny, 21, said: "The Polish players in the Dortmund team took the mickey out of me about some of the games at the start of the season.
"The 8-2 defeat was one of them.
"But they haven't been giving me much stick lately because we have picked up some good form.
"I'm confident we can beat them this time so my banter will be better than theirs after the game.
"I feel the improvement in the back four. We work together on the training ground and it seems to be working during the games. We are much more confident, we concede fewer goals and I hope we can keep it going."