As a United fan, I'm a little pessimistic with this game. Whilst 'pools defence is crud and they don't have Mane, I still see glimpse of Utd's 'oh shit' mentality that they showed in the last few seasons - when the opposition attack they sit all the way back, then one simple mistake and all their concentration goes out of the window.
With no Feiliani and Pogba, the Utd defence will get so stretched out covering the likes of Coutinho and Salah, and with Firmino dropping into the channels.....I can't see our fullbacks having a good time against them, and most probably whoever plays at left-back (Darmian or Young) will get a yellow card and then have a mare of a game.
Tactically I would not be surprised if Mourinho opted for a 5-2-3 for this game with wingbacks....sit deeper and pounce on the counter-attack.
As an England fan, I really hope that Henderson gets utterly dominated against, showing that he is nowhere near the level needed to wear an England shirt.