Set-piece weakness costing Liverpool dear, says Slot
The reigning champions head into the busy Christmas and New Year period behind fourth-placed Chelsea on goal difference.
Liverpool have scored just three set-piece goals while conceding 11 in the league so far this season, with a frustrated Slot saying: "I know the importance of it, it gets more and more, and that's why we are so annoyed by our current record.
"It's a big frustration we are where we are this season because when we were halfway through last season we had not conceded one set-piece (goal).