Jose Mourinho insists Chelsea will not sell Diego Costa.

Costa has had an inconsistent season in his second year with Chelsea and has had issues with Mourinho.

“He is happy here,” Mourinho said. “He’s another one who has, I think, three more years [on his] contract. I see him staying at Chelsea for three more years, no problem. I see that.”

There have been reports of Atletico Madrid preparing to bring him back to their club by triggering his buyout clause.

“He didn’t say that. He said in football you never know,” Mourinho said. “Atletico is a great club. Madrid is a great city. La Liga is a great league. So why can’t a player at 27 years old think that in football it’s possible to be back? I don’t see that as a problem.”