In recent games, van Gaal has even employed a flat 4-4-2 towards the end of games in order to utilise more traditional wingers.
Fans will know however that van Gaal is far from predictable when it comes to his lineups and it would be no surprise to see the Dutchman revert back to the much maligned 3-5-2 formation.
If he did, it might mean Wayne Rooney drops back into midfield. The United captain impressed against Preston North End up front earlier this week but van Gaal has repeatedly spoken of the balance Rooney brings to his midfield.
The formation has produced some of United’s worst football this season but van Gaal knows it guarantees solidity at the back, which will be vital against Swansea particularly as the game will be Gylfi Sigurdsson’s first one back following a suspension.