Warnock said: “West Ham will think, having got out of prison [in the last game], that this is their opportunity to progress. They are the type of club, who, on their day, can beat anybody in the cup.”
The first tie ended 0-0 at Anfield, with Liverpool’s much-changed team failing to capitalise on a West Ham side who looked off form.
Neither side were at the top of their game, and this resulted in a poor tie, with the draw meaning that a replay was needed.
Liverpool, on the other hand, have failed to win since that game, losing 2-0 to Leicester, and then falling to a late collapse against Sunderland on Saturday, leading 2-0 to draw 2-2 in the final stages.
The game has to be won on the night, meaning that a penalty shootout could be necessary, and Warnock believes that the Hammers have just got it in them to secure progression to the next round - and the tie with Blackburn that will secure.