Manchester United's move for Borussia Dortmund striker Robert Lewandowski depends on Manchester City's Edin Dzeko.

The Daily Star says reports in Germany claim Dortmund have agreed an undisclosed fee with Manchester City for Dzeko and will complete the signing in the summer.

Dzeko's departure could set the wheels in motion for a merry-go-round of multi-million pound deals that is expected to see Dortmund star Robert Lewandowski travel in the opposite direction to Manchester United.

Sir Alex Ferguson has been tracking the Polish striker for over 12 months and tried to sign him last summer.