Chelsea boss Thomas Tuchel has lavished praise on countryman Kai Havertz.
The German attacker has not always been the first name on the team sheet this season, but he has proven his worth in big moments.
Havertz, who scored the goal to win the Champions League for Chelsea last season, looks back to his best form in recent weeks.
"He stepped up in his mentality and his game," said Tuchel, per the club website.
"He has a huge influence physically, from his quality in our game and that's why he's very important. He's in a good shape and he turned things around again for himself.
"He was very strong in the beginning of the season and then he had a little spell some weeks ago where we did not feel him so involved like we feel him now. He fought his way out so full credit to him. It's absolutely the right mentality and he shows how important he can be."
He added: "The pride is on him because he stepped up.
"The players take care of themselves when they are on the pitch and they need to in order to stay on the pitch. He absolutely did this.
"He was a bit like down and he had struggles to fight for it and to know how to fight for it, but then he stepped up. We spoke but it's more or less a daily thing and he changed again his attitude, used his physique, and day by day was more and more impressive. He's been in a very good shape for a long time.
"Nothing has changed in the relationship. We always trusted him, he's still very young and now he shows his potential. In the moment, he plays because he deserves to play and because he gives so much to the team. He can play all three positions up front and also as a double striker but in the moment he digs in in this central position and he does well."
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