You cant be serious to use last match statistics for this match, both team will face different team with different tactics and strategy therefore predicting through their last games with different team is a silly things to do. Manchester united was unfortunate last wekk to suffer 3-0 defeat in a short time
And i think Manchester United gonna lose this match , they might hang on draw 90 minutes but they can't escape the extra minutes or penalty
Sorry for Van Gaal, the chance that you getting sack in next season will be more higher if you lose the chance to win FA Cup