Borussia Dortmund general manager Hans-Joachim Watzke has told fans the club will make notable additions in the summer to compensate for the high-profile departure of Robert Lewandowski.
On Saturday, Bayern Munich confirmed that Lewandowski will be joining them at the end of the season on a free transfer.
Questions have been raised about how competitive Dortmund will be after he leaves, with BVB having already lost Mario Goetze to the Bavarians last year and been beaten to the signing of Thiago Alcantara.
But Watzke has vowed that funds will be made available to replace Lewandowski, despite Dortmund not receiving a fee for the Poland international.
"We must, we want to and we will invest in the summer," he told Sport Bild magazine. "To what extent will remain our secret, though. We're not going to panic about finding a suitable successor to Robert Lewandowski, and we're not going to put ourselves under any pressure."
Dortmund spent more heavily than any other Bundesliga club last summer with the arrivals of Henrikh Mkhitaryan, Sokratis Papastathopoulos and Pierre-Emerick Aubameyang, but they lie 12 points behind Bayern, who also have a game in hand.
Information from the Press Association was used in this report