Hamann mentioned that Premier League clubs Manchester United and Chelsea may be interested in signing him. Other rumors spoke about Real Madrid.

"He's extremely unhappy. The negative incidents have increased and must cause concern among the club's leaders," Hamann emphasized. The club has to think about how much unrest Heynckes' replacement Niko Kovac could bear.

Bayern has missed the Champions League final four consecutive times with Lewandowski, Hamann said. "I think he will cause serious problems next season," Hamann commented.

Former Real Madrid and Bayern Munich midfielder Breitner accused Lewandowski of not fitting in anymore with the team spirit. "It looks as if he does not care much about the team's needs, only his own needs. It's always only him, him and him."

Lewandowski has a problem with his self-evaluation "as he is convinced to be at the same level as Cristiano Ronaldo. If he is, he has to prove that, but he hasn't," Breitner stated.

The 1974 World Champion said it is getting more and more difficult for the Pole to get the support of his teammates, who are offended by his behavior.

Maier said Lewandowski has repeatedly failed to show his skills against top international sides like Real Madrid. To only score goals in the national league is not enough, and does not prove international class, the former German international said. Breitner also mentioned a problem last season "when he accused the team of not fully supporting him when trying to score goals."

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