One of the top performers for the Blues since re-signing from Benfica. The Serbian who spent a period at Stamford Bridge as a youngster has been hugely important in their title tilt this season, having a fantastic ability to break up the opposition play and start attacks.
If Chelsea could pull off the signing of the midfielder who went against the wishes of Sir Alex Ferguson to leave Manchester United and forge a career elsewhere, it would make them a scary prospect for any team in world football. Another play who, at a young age, is only likely to get better which is a frightening thought for the regular Juventus starter.
A revelation since moving back to London after his brief stay at Barcelona bringing a slice of the Catalan style of play to the Premier League. The Spain international has scored four this season and assisted an astonishing 18 goals, it is of paramount importance the Blues keep hold of him.