Legendary Manchester United manager Sir Alex Ferguson has revealed what he "hated" doing as boss of the Red Devils.
The Scotsman was in charge of United from 1986 to 2013, a period during which he won 38 pieces of silverware, including an astonishing 13 league titles.
Throughout his career, Ferguson was considered by many to be a ruthless manager who would not shy away from selling high-profile players when he felt the time was right, although he has admitted to having regrets over having to tell certain players to leave.
In a recent Q&A, after revealing it was difficult having to ship out his once-great but ageing back four of Paul Parker, Steve Bruce, Gary Pallister and Denis Irwin, he explained why it was so hard telling younger footballers they did not have a future at United.
"The same when having to let young players go," he said in a Q&A session while promoting his soon-to-be-released documentary titled Sir Alex Ferguson: Never Give In, according to Goal.
"The process was the youth coach and the welfare chap would come in with the player you're going to let go.
"Maybe he's only 17, 18 years of age. The way we'd explain it is we'd try and get him a team. We'd try and get him a club and 'we're sorry we're having to do this'. That's terrible.
"That is the worst thing, having to let a young player go. All his ambitions and hopes and desires are about playing for Manchester United in front of 75 000 people and going to Wembley in a final.
"That's the ambition of every young kid that comes to Manchester United, and when you take that away from him, it's a sore, sore thing. So I hated that. I hated that."
Ferguson retired from football in 2013, which remains the last year the Red Devils celebrated lifting the Premier League title.