Their top transfer target is Sunderland midfielder Jobe Bellingham, who is expected to make a decision on his future following his club’s Championship playoff final against Sheffield United on Saturday, according to Sport Bild. If Bellingham does leave Sunderland, a transfer fee of around €25 million is likely to be required.

Dortmund had been outside the Bundesliga’s top-four since the third game of the season but secured their place on the final day.

Borussia Dortmund are one win away from completing a record-equalling Bundesliga turnaround and sealing a spot in next season's Champions League when they host relegated Holstein Kiel in the season finale on Saturday.