How new £32m signing Diego Costa will fit into Chelsea’s impressive XI for 2014/15

CB – Gary Cahill

Over the past 12 months the England international finally proved to be the top-class centre-back that the club had hoped to have signed from Bolton Wanderers back in 2012.

Now 28-years-old Cahill plays with a maturity and composure that saw the defender named in the 2014 PFA Team of the Year.