Diego Costa, 27, has scored just four goals this season and last week appeared to admit he was open to rejoining Atletico Madrid.
But Mourinho is adamant Costa's long-term future is at Stamford Bridge.ROCKY RELATIONSHIP: Jose Mourinho and Diego Costa |
"Atletico is a great club, La Liga is a great league, so why should a 28-year-old player not think it is possible to go back? I don't see a problem.
"I see him staying at Chelsea for three more years, no problem."
Chelsea take on high-flying Leicester tonight (8pm).
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