Mourinho has "no problem" with Costa talking about Atletico move
Jose Mourinho has refused to rule out Diego Costa returning to Atletico Madrid, but maintains the striker is happy at Chelsea.
Costa has scored four times this season and just seven goals since January, when his prolific start to life at Chelsea following his £32m move from Atletico came to a halt.
The 27-year-old was hindered by suspensions and a niggling hamstring injury, while he admitted reporting for pre-season training last summer carrying additional weight.
The Brazil-born Spain striker has taken time to show any menace and often appears too pre-occupied antagonising defenders to focus his energies on scoring goals.
He has apologised for his petulant bib throw in the direction of Mourinho when an unused substitute at Tottenham and was restored to the starting line-up at Porto, after which he spoke of a possibility of returning to the Vicente Calderon Stadium as rumours continue he has not settled in London.
"He didn't say that. He said in football you never know," Mourinho said.
"Felipe Luis was one example. He could also say Fernando Torres, another example.
"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."
Mourinho was asked if Costa could be a Chelsea great, like Didier Drogba.
"Drogba was here for 10 years. I don't see Diego playing till he is 38," Mourinho added.
"He is happy here. He likes to be here. 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."