no serious replies 
Man Utd's counter-attacking strategy seems by far the best
choice to contain Barca.
Like Chelsea, choke the midfield with the energetic trio of
Carrick, Anderson and Giggs / Scholes with Park and Rooney falling
back to defend and utilising Ronaldo as the main target man.
Evra will be tasked with Messi and O'Shea will easily contain a
half-fit Henry, should the latter play.
All points to another victory for Man Utd, if nothing unexpected
comes up.
Then again, the ball is round. 
AKA play the park bus strategy. 