Former Manchester United manager Louis van Gaal has been "stabbed in the back" by Jose Mourinho and the club, a source close to the Dutchman told The Sun.
The 64-year-old was sacked despite leading the Red Devils to their 12th FA Cup success at the start of the month.
Mourinho was officially confirmed as Manchester United manager on Friday after signing a three-year contract with the club.
"Louis feels betrayed by how Jose took over and how he was sacked," the source said.
"He didn't believe he would be axed after the FA Cup win and now realises what happened since December with Mourinho.
"Louis feels stabbed in the back by Jose… and by the club.
"He had heard everything during the season, but the fact remained he was still manager and then won the prize of the FA Cup.
"Maybe his own personality meant he didn't believe it, yet at Wembley he still didn't have any official word about his future.
"It was only when he got a text from United boss Ed Woodward on Sunday afternoon, asking for talks as the United train was approaching Stockport, that he knew it was over."