Bayern Munich's Robert Lewandowski wants to leave for new challenge - agent Pini Zahavi

Bayern Munich striker Robert Lewandowski has told the club he wants to leave this summer, his agent Pini Zahavi has said.

The Poland international has an agreement in place with Zahavi until the end of the summer transfer window and the agent, who played a pivotal role in Neymar's world-record transfer from Barcelona to PSG, said he had decided to move on.

"Robert feels as if he needs a change and a new challenge in his career," Zahavi told Sport Bild. "Bayern's bosses have been informed.

"Money or a specific club are not Robert's motivation for a move, as almost every top club would like to have the best striker in the world in their ranks."

Lewandowski has scored 151 goals in 195 games since signing from Borussia Dortmund on a free transfer in 2014 and has been linked with Real Madrid, Chelsea, Paris Saint-Germain and Manchester United.

And the 29-year-old did not refute his agent's comments when asked about them at Poland training on Wednesday.

"These are things that my agent is taking care of," Lewandowski said. "My focus lies on what's most important -- our preparation to the World Cup. I'm not thinking about anything else."

Despite the player's wishes, the Bundesliga champions would be highly reluctant to see Lewandowski leave the Allianz Arena.

Earlier this month, Bayern CEO Karl-Heinz Rummenigge said: "No one needs to worry -- Lewandowski will be playing for us next season," while president Uli Hoeness stressed that the striker's contract ran until 2021 and said: "We will show the football world that the club holds more power."

However, Zahavi said: "Everyone in charge at Bayern had a great playing career themselves. They should understand his situation."

Lewandowski in February split with his agent of 10 years, Cezary Kucharski, who Marca reported had "offered" his client to Real Madrid.

But Sport Bild reported that Madrid's interest in Lewandowski has since cooled and said only Manchester United would be willing to pay a €100 million transfer fee. The paper also reported that Zahavi has a good relationship with United's executive vice-chairman Ed Woodward.

Chelsea and PSG are reportedly reluctant to pay a huge fee but Chelsea could offer Alvaro Morata in a swap deal, while PSG could do the same with Edinson Cavani.