Former Germany midfielder Lars Ricken has been appointed managing director at Borussia Dortmund, taking over some of the responsibilities of chief executive Hans-Joachim Watzke before he steps down, the club said in a statement on Monday. Ricken has signed a contract until June 30, 2027. He most recently worked as director of the club’s youth training centre. “I’m convinced that with the incredible strength of this club and the passion of our many motivated employees, we will achieve great victories together and guide Borussia Dortmund into a successful future,” said Ricken, a scorer when Dort…