Jose Mourinho: 'Diego Costa a "big doubt" for Everton trip

Chelsea manager Jose Mourinho has revealed that it is unlikely that striker Diego Costa will be fit to face Everton on Saturday evening.

Costa, who joined the Blues in a £32m deal from Atletico Madrid in the summer, suffered what has been described as a "minor muscular injury" in training earlier this week, and Mourinho has admitted that the issue has made the Spaniard a "big doubt" for the game at Goodison Park.

The 51-year-old told reporters: "We are trying everything for him to play tomorrow. He didn't train for the last two days. Today is the last day. He is a big doubt, let's see."

Costa has scored once in each of his first two appearances for Chelsea this season.