Ousmane Dembele's behaviour at Borussia Dortmund and Barcelona should put Bayern Munich off making a move for the France forward, according Die Roten great Lothar Matthaus.

Recent speculation has left Dembele's future looking uncertain, with Barca seemingly set to sign Antoine Griezmann and rumours over a move for Neymar refuse to go away.

Should either Griezmann or Neymar – or potentially both – come in, Dembele may well find himself further down the pecking order in Ernesto Valverde's squad.

Dembele joined Barca as Neymar's replacement in 2017, though he has struggled with injuries and inconsistent form since his move from Dortmund, who received an initial €105million fee after the player had gone on strike to push through a move.

With Franck Ribery and Arjen Robben – who has since retired – no longer at Bayern, the Bundesliga champions are on the hunt for at least one winger, with Manchester City's Leroy Sane also a target.

Rumours have linked Bayern with a move for Dembele, but Matthaus believes bringing in the 22-year-old – whose attitude has also been called into question during his time at Camp Nou – would be a mistake.

"When I think about the scandals that Dembele caused at Borussia Dortmund and at Barcelona, ​​I see no reason to believe that he would behave differently at Bayern," Matthaus told BILD.

And Matthaus does not believe he is the only one who thinks this way, citing Bayern chief Uli Hoeness' reaction to Dembele's behaviour at Dortmund as another reason to doubt the transfer rumours.

"Uli Hoeness had a clear position against Dembele's strike at Dortmund, and if Bayern pick the player up, they would have a credibility problem," he added.

Dembele scored 14 goals for Barca across all competitions last season.

Lothar Matthaus has accused Manuel Neuer of unacceptable behaviour following comments made by the goalkeeper's agent over his future at Bayern Munich.

Neuer has been first choice at Bayern when fit but is said to be considering a move away from the Allianz Arena, citing what he perceives to be a lack of ambition shown by the German giants in the transfer market.

The player’s agent, Thomas Kroth, told Suddeutsche Zeitung that Bayern have fallen too far behind their major European rivals and the 33-year-old may have to join a new team if he is to win the Champions League for a second time in his career.

"He wants to win Euro 2020 and he wants to win the Champions League again," Kroth said.

"Manuel is success-oriented. My impression is that the gap to the top four English top teams is already serious and the Munich squad is currently not yet as competitive or set up to tackle Manuel's goals seriously.

"When he realises that Bayern are responding, then he will probably blossom again."

But those comments have not gone down well with club legend Matthaus, who feels the Bayern skipper should have discussed the matter privately rather than let his representative speak to the media. 

"His behaviour is totally unacceptable," Matthaus told Bild. "As the captain of Bayern he should speak to the club if he has a problem with the situation over signings.

"The doors of the management are always open.

"I know his agent - he's someone who doesn't usually show up in public of his own free will. Manuel will have agreed with him. My representatives would not have been able to express themselves in this way without my consent."

World Cup winner Lothar Matthaus does not believe that a French era of dominance is near despite Les Bleus lifting a second world crown on Sunday. 

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