The Bundesliga giants interestingly mentioned Gundogan’s knee injury and the fact that Man City ended the season in forth place in their statement.
“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.”
Gundogan joined City from Dortmund for a reported £20 million last week.
The 25-year-0ld has been ruled out of Euro 2016 and the beginning of next season after dislocating his knee during training earlier this month. Bild report that it will take Gundogan four to six months for him to make a full recovery.
Gundogan initially joined Dortmund from Nuremberg in 2011 under the stewardship of Klopp and helped the Bundesliga giants reach the 2013 Champions League final.
The midfield playmaker provided seven assists and three goals in 40 appearances for Dortmund last season.