The announcement that Lewandowski was ready for Barcelona made many raise their eyebrows.
The 33-year-old has been one of the world's best soccer players for several years.
But the move does not seem to have gone completely painlessly.
- Everything that happened in the last few weeks was very much about politics.
The club tried to find reasons to sell me, just because they couldn't explain it to the fans.
I had to accept a lot of bullshit and untruths about me, he says in an interview with ESPN.
Lewandowski broke away from the club when he openly stated that he did not intend to return to the German giant, despite having a contract for next season as well.
The club's CEO Oliver Kahn then came down hard on the Pole and said that "no one is above the club".
The superstar scored 344 goals in 375 games for Bayern Munich and cost Barcelona around SEK 460 million.
"Great players have left FC Bayern before, Bayern's world didn't collapse then, rather the opposite with more success," said Kahn after the move.