Liverpool are reportedly intent on bringing in defensive cover this summer as they prepare to begin their Premier League title defence.
On Monday Arne Slot's side returned to Anfield for the first time since Diogo Jota's death and played a pair of friendlies against LaLiga side Athletic Bilbao.
Fielding two separate teams on the same day exposed the lack of depth in the heart of defence, with Andy Robertson and academy product Trey Nyoni deputising in the position for the first game.
With Virgil van Dijk unavailable through illness and Joe Gomez still nursing an injury suffered during the club's pre-season tour Liverpool were forced to deploy Wataru Endo alongside their only available senior centre back in Ibrahima Konate.