The reports carried by the Daily Express suggest the Anfield club have reached an agreement with the Bundesliga side - but the move has been delayed as Papadopoulos recovers from a serious knee injury.

A £13m fee has reportedly been discussed between Liverpool and Schalke with the Reds keen to bring in competition for Daniel Agger and Martin Skrtel following Jamie Carragher's retirement.

The Greece international has been a long-term target for Liverpool and reports carried by Greek newspaper Sport Day claim the club could announce the capture upon their return from their preseason tour of the Far East.

But first the centre-back would have to undergo a stringent medical at the Liverpool training ground in order to determine whether he's fully recovered from the injury.