Whilst not fatal to our chances of winning the league, a defeat on Sunday has to be avoided at all costs. Sections of the press will seize upon a loss and underlying problems that have been present all season may take on a momentum of their own. Also, six points is a big psychological gap, and although recent history has taught us not an insurmountable one, it's a challenge I'd rather avoid if possible. People assuming lightning will definitely strike twice are allowing their hearts to rule their heads I'm afraid. I could happen, but I wouldn't bet on it.
So where does that leave Mancini in terms of how he approaches Sunday? Does he play a cautious game, knowing the potential price of defeat?
No he should not. His tenure at this club has been hallmarked by some truly breathtaking performances. More so than any club in recent history, including Mourinho's Chelsea. This team is at its best when the shackles are off. united's weak spots are their central midfield and defence and we have the ammunition to completely overpower them if we are set up right.
Disappointment in Europe under Mancini has usually been immediately followed by a high octane performance in the league. I expect the same on Sunday and we can remind united and the rest of the footballing world what a force of nature we can be and why we're Champions.