Chelsea injury news: Diego Costa still a doubt for opener as Jose Mourinho has to decide between Radamel Falcao and Loic Remy

Mourinho set to give update on Spanish striker at 4pm

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Jose Mourinho's only injury concern heading into the opening weekend of the Premier League is with star striker Diego Costa.

There is still a chance that the Spanish striker, who is again suffering with hamstring problems, could play on Saturday evening at home to Swansea City.

Costa took part in some form of training on Thursday and Friday but it is so far unclear what he actually did in the sessions - Mourinho is set to speak in a press conference at around 4pm where he will give a full update on the status of the striker.

The 26-year-old only played 135 pre-season minutes across three matches out of a possible five this summer and was left out of the Community Shield and defeat to Fiorentina on Wednesday to give him more time to recover.

If he is not fit, Mourinho will have to decide between Loic Remy, who played poorly in the first-half of the Community Shield, and Radamel Falcao, who has seen only limited action in pre-season after returning from the Copa America.

Radamel Falcao in pre-season action against Fiorentina

After moving from Atletico Madrid last summer Costa took the Premier League by storm in the first part of the season, scoring 17 goals.

But he struggled after mid-January, scoring just three more goals between 17 January and the end of the season as injuries took their toll.

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