Manchester United will have to compensate both Bayern Munich and Borussia Dortmund to sign Robert Lewandowski, according to The Daily Star.

United would have to pay the Champions League winners to rip up their agreement with Lewandowski, before then paying Dortmund the striker's transfer fee.

It was believed that Lewandowski agreed to join Bayern Munich last summer, but Dortmund have refused to sell the striker to their rivals, after already losing Mario Goetze to the Bundesliga champions.

That's opened the door for United, who are looking at Lewandowski to possibly replace Wayne Rooney, who handed in a transfer request before the end of the season.

Dortmund are asking for £25.5million for the forward, despite him having just one year left on his contract. That fee won't include the compensation that United would need to pay Bayern Munich.

But the Bavarian club could reject any compensation from United, which would open the door for Lewandowski to move to the Allianz Arena for free next summer.

United have been involved in a similar deal before and therefore know what it may take to seal the striker's signature. After an incredibly confusing saga, John Obi Mikel had initially agreed to join Manchester United, but ended up moving to Chelsea after the Blues paid United £12million in compensation.

Mikel claimed he was pressured into signing a deal with United without his agent present but actually wanted to join the Blues.

United will be hoping they can sign Lewandowski before their pre-season tour of Asia, which starts with a friendly against Bangkok on July 13th.

Will United sign Lewandowski? Should Bayern reject the compensation offer?

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