Jose Mourinho
Jose Mourinho has confirmed that Chelsea will invest in a striker to replace Didier Drogba. (Getty Images)

Chelsea manager Jose Mourinho has confirmed that there will only be incomings at his club this summer, as he does not see any players leaving the club during the transfer window.

The Blues boss also admitted that one of the signings will be a striker as he is looking to replace Didier Drogba, who left the club at the end of the current campaign.

The Premier League champions suffered during the course of the season with injuries to their top marksman Diego Costa and the manager has made it his priority to get adequate cover in the attacking department.

"We will be better. I don't see our team losing players," Mourinho said, as quoted by Goal.

"We lost a striker who scored four goals in the Premier League, but three of these goals meant important points for us. So we have to buy a striker because we want to have three strikers of a good level," he Blues boss added.

The west London club have been linked to various forwards, and reports claim that the Blues are planning an approach for Napoli forward Gonzalo Higuain, who could be available this summer after the club failed to qualify for the Champions League and lost manager Rafael Benitez to Real Madrid.

Meanwhile, the former Real Madrid manager has criticised managers who suggest that they do not counter-attack and only believe in building play from the back.

He believes that the ultimate goal of playing football is to win and believes that the counter-attacking style is a brilliant tool to employ to achieve the final outcome.

"What it is, is people who got some idea, some philosophy, and want to create something like, 'we build very well from the back, we have a very good ball possession, we don't play counter-attack'," the Portuguese manager said.

"But if you don't play counter-attack then it's because you are stupid. Counter-attack is a fantastic item of football, an ammunition that you have, and when you find your opponent unbalanced you have a fantastic moment to score a goal," he explained.

"So I think people are creating (illusions) and it has influenced public opinion. But football will never change. Football is to win."