Chelsea’s perfect transfer window this summer including former Arsenal captain and £32m Diego Costa

Eliaquim Mangala

With both Cole and Luiz on their way the West Londoners’ defence could be left a little weak and this Frenchman fits the bill in more ways than one.

Mangala has been greatly impressing for FC Porto and also has the capability to play in both central defence and as a left-back.

Source: Telegraph.