Mats Hummels will join di Maria and Vidal in a triple swoop for van Gaal
The Daily Star says that as well as securing two of their prime midfield targets, the Red Devils are also set to complete a swoop for Borussia Dortmund centre-back Hummels.
The 25-year-old was instrumental in his nation Germany winning the 2014 World Cup on Sunday and is regarded as one of the finest defenders in world football currently.
Van Gaal is said to have been given significant funds from the Adidas deal to complete the multimillion pound signings of di Maria, Hummels and Vidal.