I think Sir Alex will roll-out a relatively strong team for tomorrow's cup tie. Given the recent failings of the back four, I believe Ferguson will start an unchanged side from the Arsenal game as a means to straighten them out. You could see Larsson and Rooney sacrificed for Saha and Solskjaer. In addition, I believe you could see Giggs move to the inside with either Carrick or Scholes dropped to the bench. Last, I think you may see Kuszczak in goal and VDS on the bench.
Pompey are a strong outfit that will most likely play for the draw. As such, l predict a late United goal (e.g. Villa last month) and advancement into the next round 1-0.
See others considered for tomorrow's game.