Dejan Lovren remains “a weak link” at Liverpool and replacing him with Napoli star Kalidou Koulibaly could provide “the final piece of a title-winning jigsaw”, says John Aldridge.
The Reds have invested heavily in recent transfer windows, with their sights sight on a new centre-half 12 months ago.
A big-money January deal was done with Southampton to acquire Virgl van Dijk, with a £75 million ($96m) price tag making the Dutchman the most expensive defender in world football.
The Netherlands international has offered an immediate return on that investment, so impressive has he been, but there is a feeling he still needs a proven option alongside him.