Chelsea manager Thomas Tuchel has defended Kai Havertz's demeanour, stating he is not a 'Diego Costa kind of guy'.
The German was excellent playing as a false nine in the 4-1 win over Crystal Palace on Saturday.
And Tuchel has explained why he thinks Havertz has been misunderstood since arriving at Chelsea from Bayer Leverkusen last summer.
"He is simply not that guy that will fully feel, or you will see enraged," Tuchel told reporters after the match. "Some guys, you feel they have to fight with others to get certain momentum.
"He is not a Diego Costa kind of guy. This is simple. I will never demand he will become this. Sometimes you cannot confuse with his body language that he doesn't give everything. He is a very quiet character and we are aware of his quality.
"I don't know a level that he is reaching and how fast he can do it. I can just repeat that he stepped out of his comfort zone coming from Leverkusen to the Premier League; you want to challenge yourself. Here he is and it is up to him to show the quality.
"He has shown already very strong performance against Everton and Atletico. For us, he had a tough match against Porto and the speech was very easy: Go and show you can do better and fight for your place. He gets a second chance and he took that.
"He can be even more ruthless in finishing because he has extra quality. He doesn't have to be our emotional leader because he is not that guy and it is not necessary.
"But, in terms of controlling the ball, keeping it in difficult situations, having little runs, being in high positions and having good finishing, this is what we demand. He needs to show up and show up. This is life as an offensive player at Chelsea."
