The pair had a falling out during the summer after Valdes reportedly refused to play for United's Under-21 side during the closing stages of the 2014/15 season.
As punishment for this insubordination, Van Gaal forced the Spaniard to train with the apprentices and banned him from using any of the facilitates at the same time as the first team.
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Valdes was subsequently told he would be sold during the transfer window, but a deal with Turkish side Besiktas fell through and he has remained at the club ever since, continuing to train on his own with some of the coaching staff or with the Under-21's.
Despite the former Barcelona 'keeper keeping his head down and doing as the manager asked, Van Gaal has offered no sign of reconciliation with both Sergio Romero and Sam Johnstone moving ahead of Valdes in the pecking order.
And just when he would have thought things couldn't get much worse, he has now been told that if he enters the Aon training complex before all of the first team players have left he will be fined.
Such a move by Van Gaal seems to be the final nail in Valdes' United coffin, with him no longer allowed to have any association with first team players whilst in the complex.
Therefore, it looks as though the 33-year-old, who joined the club on a free transfer in January 2015, will leave after just one year and two first team appearances.
Unfortunately for the Red Devils, due to the high wage demands of Valdes and his lack of first team football, the club could struggle to find a suitor for the European and World Cup winner.
Manchester United fans: has Valdes been mistreated during his time under LVG? Let us know in the comments below.