Karl-Heinz Rummenigge: Bayern Munich would need to be 'out of our minds' to sell Muller to United

While confirming that offers have been made for the Germany international, Rummenigge said the €100m mark had not been reached but that it would not make a difference anyway.

While confirming the arrival of Arturo Vidal from Juventus, pending a medical, Rummenigge did not rule out making further signings this summer.

The Bundesliga champions have already signed Douglas Costa, Sven Ulreich and Joshua Kimmich this summer, while Bastian Schweinsteiger, Pepe Reina and Mitchell Weiser have all left and funds are there to be spent.

With Premier League clubs set to benefit from a lucrative new television deal next year, that could tempt Bayern to invest in players they might normally wait another year for.

"We do have to consider whether we bring our transfer activities for next year forward," said Rummenigge. "It's certainly not going to be a cheaper transfer window (next summer)."

During the meeting with the media, Rummenigge also touched on the future of coach Pep Guardiola.

The Catalan's contract is up for renewal next summer and no negotiations are currently planned, although both Guardiola and Bayern have insisted there is no rush.

"I can't currently think of any reason why Pep would leave us," Rummenigge said. "Maybe we'll just meet for an espresso and clear everything.

"But if Pep doesn't want to stay, our world would not fall apart."

Guardiola has won back-to-back titles in his two years in charge of Bayern, but they have fallen short in the Champions League and that is the title both he and the club desperately want this season.

It doesn't sound like Bayern Munich are going to agree to the sale of Muller any time soon. And certainly not to United with the German champions' position hardening following the sale of Bastian Schweinsteiger to the Premier League side. Rummenige was recently asked by the German magazine Kicker about United's interest in the attacking midfielder, and told them that United had about as much chance of signing Muller as "a flying duck over the ocean". Make of that what you will.

Muller contributed 'only' 13 goals from 28 starts last season, but Pep's growing reluctance to find a place for him is apparently not shared by his board of directors. Muller sounds as important to Bayern as Pep. In acknowledging such facts, every player has his price. The Muller move to United may not be completely dead, but are they willing to break their transfer record for a second straight summer to sign the multi-faceted attacking midfielder? It could take over the £70mfee that has been mooted.