Louis van Gaal has criticised Jose Mourinho for the way he treated Bastian Schweinsteiger at the club.
The then Germany captain penned a three-year deal at Old Trafford in July 2015 as he was reunited with his former Bayern Munich boss Van Gaal.
Schweinsteiger signed a three-year contract at United when he joined in July 2015.
Schweinsteiger joined Major League Soccer’s Chicago Fire last March after he was frozen out of the team by Mourinho.
Mourinho admitted regret at the way he handled things with him, a treatment that irked Van Gaal.
“Schweinsteiger was, of course, older but not too old,” Van Gaal told Sport Bild.
“His body was not able to keep up with the high demands of Premier League.
“Bayern sold him to us as fit player, but, in fact, physically he had reached the end.
“How Mourinho treated him after me, Schweini did not deserve this. But it explains the situation, how it stood with Schweinsteiger.
“It’s a shame because he is a player like Luis Enrique, Mark van Bommel or Philipp Lahm – the guys who always present on the pitch.”