Well that's the magic of the F.A Cup. You never know, even if Utd had fielded a first team the result might not have different. If's and but's. You'll have to wait a while to see Burnley have a go the Reds because the tie got cancelled and we've got Watford midweek in the League Cup. The fact is Utd's reserves still should have won, but it was a stalwart performance from Exeter. I doubt Utd will field a first team for the replay either.