Chelsea are confident Diego Costa's hamstring injury is not serious.
The striker, who has scored four goals in Chelsea's three Barclays Premier League games so far, withdrew from Spain's squad to face Macedonia with a hamstring injury on Friday.
The Daily Mail says Chelsea chiefs are hopeful Costa will not be a long-term injury concern for Jose Mourinho.
The Blues boss will make a late decision on whether to consider the former Atletico Madrid man for the clash against Swansea on Saturday, though it is understood Mourinho is not ruling him out yet.
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