The club are reportedly in discussions with the Ukrainian side over their star midfielder.
According to reports, the former Internacional midfielder would cost Chelsea in the region of £11 million.
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The reputation of the Premier League means it is the most popular and one of the most watched leagues in the world.
Five English clubs will compete in the last sixteen of the Champions League for the first time ever as Liverpool, Manchester United, Manchester City, Chelsea and Tottenham face some difficult away matches.