Chelsea striker Fernando Torres is upset with the January sale of Juan Mata to Manchester United.
The Daily Mail says Blues boss Jose Mourinho is furious with his attitude, which is believed to be linked with the departure of Mata in January.
Mata, who joined Manchester United in the last transfer window, is a close friend of the Chelsea forward and a fellow Spaniard.
Mourinho has suggested Torres does not 'associate' with the other players at Chelsea.
Although Torres scored 23 goals last season and won the Europa League under Rafa Benitez, he has hit the target only twice since Mata's departure.
