Ferguson is the most successful British manager in the history of the game and has won more than 30 trophies during his time in charge of the Reds.
The Scotsman, who took charge of Ron Atkinson's sinking vessel back in 1986, transformed Manchester United from a mid-table team to a 19-time league-winning side.
Ferguson has seen a lot of things change around him in his time at Old Trafford. Players, staff, stadiums, rules, technology, etc. But the 69-year-old has been the only constant in a quarter of a century of transitions at the club.
Many a star player and celebrity with an enormous ego has come and gone but not before bowing down to the biggest ego of them all, Sir Alex.
This is one of the reasons the club is so successful. Because no player is bigger than the manager and the club. Ferguson's "my way or the highway" policy is what drives the players and the club to success each and every year.
This November, Sir Alex will complete 25 years at the helm of the most successful club in English football history. A distinction which was achieved by no small contribution from the great man himself.
But he couldn't have achieved it without his protégés, the players he crafted and molded into world-beaters over the years.
A quarter of a century is a long time. Hundreds of players have come and gone belonging to different generations.
But I've often wondered what it would be if the best of Ferguson's crop were drafted into one dream team. Wouldn't that be something!
So here's my version of Sir Alex Ferguson's Manchester United Dream XI.