The Trotters have long been linked with a move for the 22-year-old Frenchman and are looking to push through a deal before the passing of Wednesday's transfer deadline. Ngog moved to Anfield in 2008 when former Reds manager Rafa Benitez brought him to the club from Paris Saint-Germain. He made 38 appearances for Liverpool last season but Kenny Dalglish sees him as surplus to requirements following a busy summer of recruitment. Meanwhile, Owen Coyle has a contingency plan in hand should much-coveted central defender Gary Cahill depart the Reebok Stadium. If Cahill does make a dramatic exit, then Coyle has lined up Manchester City's Nedum Onuoha as a replacement.