Borussia Dortmund says it has extended the contracts of coach Juergen Klopp and sporting director Michael Zorc.

The defending Bundesliga champion says in a statement that both have agreed deals with the club until June 2016.

Dortmund president Hans-Joachim Watzke says ''we're delighted that we could extend the contracts with both of them so early. Both have accomplished outstanding work in the last years.''

The 44-year-old Klopp, who took over in 2008, led Dortmund to its seventh league title in his 100th game in charge last season.

Klopp says ''I'm lucky to be able to work at a magnificent club.''

Former Dortmund player Zorc has been sporting director since 2005.