Chelsea manager Antonio Conte has insisted that striker Diego Costa is "very happy" at the club despite reports suggesting that he wants to leave Stamford Bridge.
The 27-year-old is rumoured to be pining for a return to former club Atletico Madrid, with reports yesterday claiming that he had handed in a transfer request.
However, Conte talked up the Spain international's importance to the team and hinted that he would be going nowhere this summer.
"Diego Costa is our player, he's a fantastic player with fundamental importance. He's very happy and is working hard," he told reporters.
"I'm very happy with our work, I found the players have the right attitude and they are great workers. I'm seeing a great attitude and great behaviour from the players and we must continue that for the whole season."
Costa scored 16 goals for Chelsea last season as they only managed a 10th-place finish in the Premier League.
