Diego Costa's persistent injury problems are not causing Chelsea manager Jose Mourinho concern.
Jose Mourinho is unconcerned by Diego Costa's long-term fitness, despite the striker remaining a doubt for the start of Chelsea's Premier League title defense against Swansea City.
Spain international Costa enjoyed a fruitful first season at Stamford Bridge, scoring 20 league goals.
However, hamstring and thigh injuries blighted his campaign and his fitness problems resurfaced as he was declared unavailable to play in Sunday's Community Shield defeat to Arsenal.
Manager Mourinho is calm about Costa's situation, though, and stated that he is more than happy to use Radamel Falcao or Loic Remy as alternative options in attack.