Liverpool have agreed a £75million deal to sign Van Dijk from Southampton after missing out on him in the summer.
Van Dijk will officially become a Liverpool player on January 1 and he could make his debut against Everton in the FA Cup third round next Friday. The Netherlands international will be assigned squad number four, upon his arrival at Liverpool.
Liverpool wrote in a statement: "Liverpool Football Club can confirm they have reached an agreement with Southampton for the transfer of Virgil van Dijk.