The vice-captain is missing from the Reds’ squad for the clash with Rafa Benitez’s side at Anfield – as is Alberto Moreno, who is nursing a back complaint.
Speaking pre-match about Milner’s absence, Klopp said: “It’s not that serious but still serious enough to put him out of the squad today.
“Millie has a little muscle problem so we couldn’t fix it quick enough, obviously, similar to Alberto Moreno [who has] some back problems.”
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