Bayern Munich have agreed a fee with Barcelona for the transfer of world footballer of the year Robert Lewandowski, club chairman Oliver Kahn has said. “Until now however only verbally, the contract work is still outstanding,” Kahn told the Bild newspaper on Saturday. Lewandowski is set to fly to Spain on Saturday ahead of an expected move to Barcelona, widespread media reports have said. He plans to sign a four-year contract with the Catalans on Sunday, the reports added, saying a deal had been agreed between Bayern and Barcelona for an initial €45 million ($45.3 million) transfer. The 33-yea…