Liverpool assistant Pep Ljinders has confirmed the club will be without Joel Matip for Wednesday's Carabao Cup fourth-round clash with Arsenal.
Matip aggregated a knee injury in the draw with Manchester United two weeks ago.
Ljinders added that Xherdan Shaqiri will also be out until next month.
"Shaq will only be back after the international break," Ljinders told Liverpool's website.
"We want to give him the time. With a calf injury it is always very high risk, especially with his calves.
"Joel's knee is still irritated - we need to give him time. I don't know the exact time he will need but it will really need time to heal."
