Bastian Schweinsteiger said this quote

There's a famous slogan here in the Bavarian dialect, and we use it inside Bayern Munich. We say, 'Mia san mia.' Literally, it is, 'We are we,' but it means, 'We are who we are.' That's not being very arrogant, but we are very confident about our ability to win the game. It is about a winning mentality.