5. Zenit St Petersburg

January spending: £14.9m

The Russian giants signed just two new players in the January window - one of which arrived at the Petrovsky Stadium on a free transfer.

However, Zenit feature in the top 10 list after Luciano Spalletti paid big-money to sign Jose Salomon Rondon from Rubin Kazan.

Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: http://gms.to/writeforgms