Klopp has a contract until June 2018, but Dortmund’s dire form has led to questions about how much longer he can stay in the job, despite finishing in the Bundesliga’s top two for the last four seasons.
Watzke has always said Klopp will only leave Dortmund when he chooses too, and insists the coach still has the confidence of his superiors.
“Of course. There is no question about that,” Watzke told Bild, adding that he is not prepared to answer questions about Klopp’s future on a weekly basis.
Dortmund climbed off the bottom of the league table on Saturday with a 3-0 win at fellow strugglers Freiburg to claim their first victory since the start of December.
They host mid-table Mainz on Friday, then fellow strugglers Stuttgart away on February 20 before their Champions League last 16 first-leg clash at Juventus.