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Diego Costa missed the Champions League game with Maribor as well as a Premier League trip to Crystal Palace

Chelsea striker Diego Costa has been released from hospital following treatment for an illness.

The Spain striker was admitted with a severe stomach bug in the days after his return from international duty.

He is also nursing a groin problem, picked up while playing for Spain. He was absent from Chelsea's 6-0 Champions League win over Maribor on Tuesday.

Costa, 26, is also considered a doubt for the Premier League clash with Manchester United on Sunday.

His condition is said to be improving.