Tottenham chairman Daniel Levy is unhappy with Bayern Munich manager Thomas Tuchel.
A media report states that Levy is furious at Tuchel holding talks with Spurs striker Harry Kane.
The England captain is the top striker target for Bayern this summer, given the lack of goals from the team's front line last term.
Per Bild, Levy is furious that Tuchel has gone around Spurs to talk to Kane about coming to Germany.
The attacker had previously indicated he would prefer a stay in England, but has softened his stance.
Kane's priority is to play in the Champions League and win trophies, while he knows Spurs are more likely to sell him abroad.