Both clubs were forced to reveal details of the deal yesterday after it was reported in Bild, but Dortmund were aggrieved that it threw a spanner in the works as they prepare to face Real Madrid in the Champions League tonight.
“It could have been worse: it could have happened a couple of hours before the game,” Klopp said. “But on a scale of one to 10, this is a nine. We all know why it has come out now. We don’t know why the people who have leaked this have done so at such a delicate time. We can only speculate but we are all making the same suppositions.”