Alex Ferguson never considered Jose Mourinho to potentially succeed him at Manchester United because he knew of the Portuguese manager's desire to return to Chelsea.
Mourinho left Real Madrid and started his second stint at Chelsea when he signed a four-year deal in June 2013.
"Every manager in the world looks at Man United as a huge club but I wanted to come to Chelsea," he said during an interview for a BBC documentary.
"And we didn't bring that to the table because we were so open and he knows so much about myself that he knew that for almost a season, I want to leave Real Madrid and I want to come to Chelsea."
"He told me a huge secret, not many people knew, like, one month or two months before the decision," he said.
"I know that he trusts me, because if he doesn't, he doesn't tell me but I was scared.
"I was scared so when finally he informed the media about this decision it was a sense of relief."
