There is no shortage of competition for the German either: in Italy, the first club to inquire was Milan, followed by Napoli, Inter and Juventus.
His current salary, between £6 and £7 million net per season, could be sustainable for several European clubs, such as Arsenal and other Premier League clubs that are keeping him in their notebooks.
Qualifying for the next edition of the Champions League is therefore essential in order to attract players of this calibre.