"They have been together as a team for longer, while we have five newcomers and a whole new way of playing," stated the Special One.
"However, we do not feel like underdogs. Tomorrow will be a game between two teams packed with quality who will try to win."
It represents the return of Zlatan Ibrahimovic, but Mou has already put him aside in favour of the striker he exchanged places with.
"Eto'o was born to win. He is transformed on the pitch. He doesn't need to prove anything to anyone, he will play the way he usually does and it is just the first European game of the season.
"Ibra left, we brought in [Thiago] Motta, [Diego] Milito, Lucio and [Wesley] Sneijder as well as a great hitman like Eto'o.
"The truth is Samuel is more suited to the style of football we want to play. Let's just say the transfer made everyone happy. I care for Zlatan, but I hope tomorrow he doesn't do well at all!"