Premier League giants Liverpool have confirmed their first major signing of the January transfer window.
Click through the gallery above to see Liverpool's top five most expensive signings, as per Transfermrkt.
The Reds have confirmed the arrival of Colombia international Luis Diaz from FC Porto in a deal reportedly worth €40million.
Liverpool Football Club have completed the signing of Luis Diaz from FC Porto, subject to the successful granting of a work permit and international clearance.
The 25-year-old has signed a long-term contract with the Reds after passing a medical and finalising personal terms.
Diaz will arrive on Merseyside once he has completed international duty with Colombia, who face Argentina in a World Cup qualifier in Cordoba on Tuesday evening.
The 25-year-old was impressive for Porto in the first half of the season after bagging 14 goals in 18 Primeria Liga appearances while also registering five assists.
Below are more transfers that were confirmed this week: