Fosu-Mensah thrived under Van Gaal and looked set to become a cornerstone of that Man Utd side for years to come.
Fosu-Mensah last appeared for United in May 2017.
The recent injuries to Paul Pogba and Scott McTominay have severely weakened United in midfield.
These Premier League players have not gone, but they absolutely have been forgotten.
Timothy Fosu-Mensah is ready to challenge for a place in Manchester United's starting line-up this season.
"I do not want to hear that I am young and that my time is still coming," says Timothy Fosu-Mensah.
How many of the 30 players on loan in the top flight have enhanced their credentials? What of Hart?
Hands up who thought Phil Jones would have started every game of Man United's season so far?
Arsenal's quartet have struggled, Liverpool have a scorer and a Man United keeper shines. And Chelsea...
Timothy Fosu-Mensah has joined Crystal Palace for a season after 21 Man United games.
Man United defender Timothy Fosu-Mensah is set to join Crystal Palace on a season-long loan.
Aurier to Man United is a thing, but so is Fosu-Mensah leaving. Arsenal players know that Sanchez wants out...
Darmian's time at United could be numbered thanks to the potential of Fosu-Mensah, according to reports.
Man United defender Timothy Fosu-Mensah has signed a new long-term contract with the club.
Timothy Fosu-Mensah has agreed a new long-term deal to stay at United, according to reports.
Bastian Schweinsteiger is the most high profile, but the average age of the nine is 21.6. Oh, Jose.
Louis van Gaal has praised youngster Timothy Fosu-Mensah after his first Man United start.
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