Earlier on in the campaign United struggled in the absence of several key players due to injury, but they have clicked into top gear in recent games, both at home and in Europe.
- Will Tidey recalls the 1999 CL final
- Key Players
Ferguson commented: "The return of the (Nemanja) Vidic and (Rio) Ferdinand to keep our back four solid is significant.
"Along with Edwin van der Sar there was a time when all those players were injured. It wasn't easy and we were very fragile.
"But you can see the solidity now. You can see the experience of these players and it is making a massive difference to the performances of the team.
"It is a true saying strong at the back, strong as a team. We are looking very strong now.
"We have matured as a team in Europe. Our away record over the last two or three years has been fantastic.
"It is 17 games undefeated away from home now. That is an indication of the team's maturity and understanding of how to play in Europe.
"There have been some fantastic challenges in those 17 games, but we accepted the challenge of the weaknesses away from home in our game some years back.
"We have addressed them properly now."