Liverpool have agreed to a club-record deal to sign Southampton defender Virgil van Dijk.

The club posted a picture on their website of the Netherlands defender holding a Liverpool jersey, and said that he will join the team when the transfer window reopens Monday.

A source close to Liverpool said the fee for the deal was £75 million, which would make van Dijk the most expensive transfer in club history and also constitute a record fee for a defender. Van Dijk will wear the No. 4 shirt upon his arrival at Anfield.

Southampton also confirmed the deal, announcing: "Southampton have agreed a fee that will set a new world-record for a defender. The club wishes Virgil well in his future when the deal is completed on January 1st 2018.''