As well as scoring the same number of league goals as Barcelona superstar Lionel Messi, Diego Costa also blew soon-t-be-new-teammate Fernando Torres out of the water in the goalscoring stakes. Costa scored three times as many goals as Torres last season, with the ex-Liverpool man managing a lacklustre five - his worst goals return since arriving in England in 2007. It's little wonder then that the Blues have sanctioned the move for Costa, given Torres has been in a steady state of decline ever since arriving at Stamford Bridge. Not only did Costa score more goals than Torres last season, but he also scored more goals on his own than the Blues' entire strike force managed as a collective in 2013-14. Torres, Samuel Eto'o and Demba Ba managed 25 strikes between them to Costa's 36.