The Scot says that he is looking forward to a battle between two of the best clubs in the world.
"Jose [Mourinho] summed it up perfectly. It is a game everyone has been waiting for," said Ferguson.
"It is a game that is a fantastic challenge for myself and it should be a fantastic match between two teams and two clubs who embrace the best parts of football.
"It won't be 0-0 on Wednesday, I can assure you of that. There will be goals."
The two sides meet in Spain on Wednesday.