Chelseahave contacted the agent of Bayern Munichstriker Robert Lewandowski as the Blues look to bolster their attacking options with the Poland international, who is eager to leave Bavaria this summer, according to reports.

Manchester United are also said to be another Premier League side who are interested in signing the 29-year-old, while Lewandowski has also been catching the eye of Juventusand Real Madridahead of the new campaign.

Reports from France Football state that Chelsea have already contacted Lewandowski's agent, Pini Zahavi, to help speed up negotiations this summer. The Sunadds that United have also contacted Zahavi as Lewandowski continues to push for a move away from Bayern Munich.

It is suggested that Chelsea will look to cut their losses with Álvaro Morata this summer in an attempt to help finance the move for Lewandowski, although the Spaniard's rumoured move to Borussia Dortmund has already been played downby officials in Germany.

The west London outfit will likely have to finalise a deal for their new manager before dipping their toes into the transfer market. It is still believed that S.S.C. Napolimanager Maurizio Sarri will move to Stamford Bridge following the Italian side's appointment of Carlo Ancelotti.

And if the Blues do stall in their pursuit of Lewandowski that could allow Manchester United to sneak in and acquire his signature. 

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It is largely unknown how manager José Mourinho would adapt to accommodate the Poland international into his squad - given the form of Romelu Lukaku last season - but Lewandowski's arrival could pave the way for Anthony Martial to leave the club.