The Reds take on their rivals aiming to go to clear at the top of the Premier League table; however, they will tackle a United side unbeaten in the division since appointing Ole Gunnar Solskjaer as caretaker manager in December.
Salah told Premier League Productions: “They are unbeaten in their last nine [league] games, so they are in a good way and they want to win against us.
“Everyone knows about Liverpool and Manchester United. They have good players – even before they won their last 10/11 games, they have had very good players from the beginning of the season.