Ferguson's first game in charge of United was against QPR in 1986 and the statue, commissioned last year to honour his quarter of a century in charge, will be revealed at 2pm.
Ferguson has won 12 league titles, two Champions Leagues, five FA Cups and four League Cups during his tenure at the club.
The statue has been built by renowned sculptor Philip Jackson and will be positioned near the entrance to the Sir Alex Ferguson Stand, renamed in the Scotsman's honour last year.
The club will also be unveiling new artwork and installations in the Sir Alex Ferguson Stand concourses to highlight his achievements at Old Trafford.


 





