​Borussia Dortmund totally just went there.

The Bundesliga outfit announced the completion of Ilkay Gundogan's £21m move to Manchester City with a brilliant passive-aggressive farewell note.

Dortmund didn't forget to remind the German how successful the club he's leaving are and where City finished last season on their post about the move on Facebook.

​​The post reads: "Bundesliga side Borussia Dortmund and Ilkay Gündogan will go their separate ways in future. The midfielder, who is currently suffering from a knee injury, will leave the eight-time German champions in the summer to join Manchester City, who finished fourth in the English Premier League last season, on 1 July 2016."

Well, it seems like they're handling the breakup the way one would expect them to, given their history of losing top players to the lure of more money and silverware.

For his part, Gundogan chose to "thank his teammates, club officials, the coaching team and all the staff at Borussia Dortmund for a wonderful, exciting and successful time, which I will never forget. After lengthy contemplation, I decided to leave this fantastic club to take up a new sporting challenge in a different country. I will always feel a close bond to BVB and my many friends in Dortmund."

Basically, it wasn't you, it was me