Jurgen Klopp has confirmed that Arthur Melo's injury is 'really serious', admitting the midfielder will be out 'long-term'.
Liverpool's summer signing, who joined on loan from Juventus this summer, injured his left thigh during training in October.
When asked for an update ahead of Liverpool's clash with Leeds at Anfield, Klopp said: 'It's a really serious injury.
'He's here. It's a long-term injury and when he's back, we'll think about it again.
'I have no idea how long it will be but it will be long.