Jurgen Klopp bemoaned Liverpool's inability to defend set-pieces as their defence of the FA Cup came to an end at Brighton on Sunday afternoon.
Klopp's team were beaten 2-1 at the Amex Stadium in the fourth-round tie as the Reds suffered their ninth defeat in all competitions this term.
The Reds took the lead through Harvey Elliott's first-half goal but were pegged back when Tariq Lamptey's shot from a half-cleared corner hit Lewis Dunk to wrong-foot Alisson Becker.