Jose Mourinho started learning German as he is in regular contact with Borussia Dortmund.
The former Chelsea boss is currently working as a pundit with Sky Sports but is keen to return to management and Dortmund are on his radar, according to German outlet
Bild.
Current Dortmund boss Lucian Favre is not understood to be under pressure but the German giants have made an inconsistent start to the campaign and are looking at the long-term picture.
The chance to challenge Bayern Munich's Bundesliga dominance is something which could appeal to Mourinho.