Diego Costa (Atletico Madrid)
Diego Costa is amongst the very hardest working strikers in Europe, and his relentless pressing from the front would fit in well at Stamford Bridge.
The Brazil Spain international is prolific too, and with 21 goals and three assists in 26 La Liga appearances, he has made the difference in most of the games he has played this season.
Costa has proven effective in the UEFA Champions League too, with five goals and an assist in his four matches, and could be the lift Chelsea need to challenge the likes of Bayern Munich, Real Madrid and FC Barcelona at the top of the game.