Pep Guardiola and Leroy Sane should have been clear over the Manchester City's star's future while Bayern Munich were trying to arrange a transfer, according to ex-Bayern boss Ottmar Hitzfeld.
Sane's future at the Etihad Stadium has been the subject of much speculation since the end of last season following the winger's disappointing start to 2019.
The 23-year-old fell behind the likes of Raheem Sterling and Bernardo Silva in the pecking order in Guardiola's squad, ending the 2018-19 Premier League campaign with ten goals to his name from 31 appearances.
Editors' Picks
Bayern have attempted to lure Sane back to Germany over the last few months, but Bavarian officials have previously baulked at City's €100 million ($111m, £91m) valuation of a prized asset.