Thomas Tuchel has "no doubts" Kai Havertz's quality will shine through despite his challenging start to life at Chelsea.
Havertz joined the Blues from Bayer Leverkusen last summer for a fee of £72million after months of speculation over his future.
The 21-year-old enjoyed an excellent final season in the Bundesliga, scoring or assisting 18 goals, and was tipped for great things.
But his first campaign with the Blues has not go to plan so far and he has scored just one goal in the Premier League.
In a bid to help Havertz find his form, Stamford Bridge chiefs were keen to appoint a German manager after sacking Frank Lampard in January.
Tuchel was the man chosen for the job and he is confident he can get his compatriot firing in west London, but warned there is no quick fix for his goal-shy form.
The Blues boss told reporters: "It takes time, there is no short answer, but what we can rely on is that all this potential is in him. It’s logical that it’s also in him to show it on the pitch.
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"For every change of club, for every player, it is different. Sometimes it needs a little bit more time to adapt, sometimes it is quick. Sometimes it is between one match and another, sometimes it is a process.
"All we can do is push him, support him and give him what he needs – we figure out what he needs right now.
"He had a pretty good start with us, he had good matches and I have the feeling that I see a guy who's totally clear, totally self-aware, very humble and incredibly talented. So there are no doubts that he will show this, the sooner the better.
"Now, unfortunately, he missed some training sessions, he missed some games for us. Hopefully he can come back to us in the next few days because I'm absolutely convinced he will have a big impact on this club."
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