Blues working on huge January deal.
Chelsea look set to join the likes of Manchester United and Manchester City in the race to sign Atletico Madrid star Koke, according to the Daily Star.
The Blues are making the £47m-rated midfielder one of their top targets for the January transfer window, in what would make their third raid on Atletico this season.
Jose Mourinho already moved to sign Diego Costa and Filipe Luis from the Spanish champions in the summer, and Koke is another of the best players at the Vicente Calderon.
United and City are also chasing the talented 22-year-old, but Chelsea now hope to add him to their midfield of Nemanja Matic and Cesc Fabregas.
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