ANTONIO CONTE reckons Diego Costa is the strongest striker in the world.
The Spaniard has been heavily linked with a move away from Stamford Bridge in recent weeks with Atletico Madrid pursuing him.
But Conte has confirmed he will be part of his plans and he says he is enjoying working with the forward.
He said: “He is working very hard. He is very happy to work with team-mates and me in a new idea of football.
“The most important thing is that Diego Costa is a Chelsea player.
“He showed that he is very, very strong.
“The best in the world for me. I am sure that also when he gets into this idea of football he can score a lot of goals.
“In football, in my experience I learned that 100 per cent never exists because you don’t know what can happen in life.
“In general, in my experience as a footballer and as a manager, I learned that 100 per cent is very, very difficult to tell.
“I am sure and I am very happy to train Diego and I know that he is our player and he is an important player for me, for his team-mates, for the fans, for all of the people in Chelsea.
Chelsea take on RZ Pellets in the final match of their pre-season tour of Austria tomorrow.