The Redsstill have a depleted backline, but the Da Silvatwins could both be available, with Fabio having come on as a substitutein the Fulham reversal.
United have eight defenders out of action, with Nemanja Vidic (flu), Rio Ferdinand (calf), Wes Brown (hamstring), Gary Neville (groin), Rafael (shoulder) and Fabio da Silva (groin) are sidelined.
United boss Sir Alex Ferguson, serving the first of a five-match touchline ban, was in regular telephone contact with the United dugout and acted to change his side at half-time, replacing the injured Brown with Fabio da Silva and replacing Hernandez with Berbatov.