article_snippet.sent: Chelsea aggravated a hamstring problem in last weekend's win over Stoke.
article_snippet.sent: The 26-year-old (right) lays on the Stamford Bridge turf in a heap after damaging his hamstring vs Stoke again .
article_snippet.sent: Only Diego is injured, everybody else is fine and ready,' Chelsea said during the club's pre-match press conference on Friday. '
article_snippet.sent: it's normal,' Chelsea said. '
article_snippet.sent: If Chelsea plays three it's a little bit below what I'm expecting.
article_snippet.sent: If Chelsea plays five it's more than I'm expecting.'
article_snippet.sent: Asked whether Chelsea was concerned about the former Atletico Madrid forward's latest injury, the Chelsea boss said: 'Not concerned.
article_snippet.sent: I'm concerned about the match on Sunday. '
highlights_snippet.sent: Chelsea beat Stoke 2-1 at home in the Premier League on April 4 .
  
highlights_snippet.sent: Blues travel to QPR on Sunday in a west London derby at Loftus Road .