article_snippet: Chelsea are being kept updated on Shakhtar Donetsk midfielder Douglas Costa fitness ahead of a £20million summer swoop.
article_snippet: And the Blues will revive the Blues interest in the 24-year-old ahead of next season provided the Blues receive assurances over a long-standing knee concern.
article_snippet: Jose Mourinho and Chelsea are receiving fitness updates about Shakhtar Donetsk midfielder Douglas Costa as Mourinho and Chelsea want assurances about a knee injury .
article_snippet: Chelsea are being regularly updated on Shakhtar Donetsk midfielder Douglas Costa's fitness and will press ahead with a move if they are satisfied with the joint in question.
highlights_snippet: Chelsea want assurances about a long-standing knee concern .
  