Liverpool are weighing up a bid for Charlton teenager Joe Gomez as a replacement for the soon-to-be-offloaded Sebastian Coates.
With Sunderland seemingly set to pay £4million to make Coates' loan last season into a permanent deal, the Reds are on the lookout for cover at centre-back.
It is understood Gomez, aged 18, is of interest and while no formal offer has yet been made, the club believe there is a possibility of signing the England Under-19 defender for about £3.5m.
Liverpool currently have four senior central defenders in Martin Skrtel, Mamadou Sakho, last summer's £20m arrival Dejan Lovren and Kolo Toure.
Skrtel, who is out of contract in a year's time, is stalling over the terms of a new deal offered towards the end of last season while the 34-year-old Toure, whose new 12-month extension takes him to next summer, is not a long-term option.
Liverpool also have Tiago Ilori, a 22-year-old signed from Sporting Lisbon in 2013 but who has yet to make a first-team appearance and has spent loan spells at Granada and Bordeaux. Gomez, whose breakthrough season in the SkyBet Championship last term saw him make 24 appearances, is viewed as a long-term prospect and - like Ilori - would more than likely be loaned out for more experience. Meanwhile, Lille have been ordered to pay Genk €300,000 for the 2010 transfer of Divock Origi.
The Belgium striker, now with Liverpool, began his footballing education in his homeland with Genk, leaving them at the age of 15 before signing youth terms with Ligue 1 side Lille.