Liverpool and West Ham will go into a replay to decide who progresses into the fifth round after they played 0-0 at Anfield on Saturday.
The game which lacked spark, as both teams found it difficult to break the deadlock.
In the first half, West Ham lost the duo of James Tomkins and Chieckhou Kouyate to injury.
And in the 70th minute, Victor Moses who was on from the start, was substituted for Michail Antonio.
Also, the game also saw the introduction of youngster Sheyi Ojo for Jordon Ibe with 10 minutes left.