Source: Team_Talk
Blackwell: I know my Blades team
The Blades were without injured strike pair Darius Henderson (Achilles) and Jamie Ward (muscle pull) for the second leg of their semi-final triumph over Preston, while winger David Cotterill has been nursing a calf injury.
All three are in a race to be fit for the Wembley showdown.
Blackwell said: "In my own mind I know my team. I knew exactly what it would be in the semi-final and you just have to hope that everything works out.
"If I was having major dilemmas now then the whole year would have been a waste of time.
"I know what we want, who we need, and how we are going to do
it, so when you think like that it's quite simple."