Thomas Tuchel says Chelsea retain “faith and confidence” as they battle strikers Timo Werner and Kai Havertz.
Both players were substituted 25 minutes from the end of the 2-0 Champions League win over Porto in Sevilla on Wednesday.
Tuchel said after the first leg of the quarter-finals that the two players had not given him what he was looking for.
But ahead of the short trip to play Crystal Palace in the Premier League on Saturday, he insisted that both players remain a key part of his plans and that his replacements were only game specific.
Tuchel admits that Werner lacks confidence but has no worries about Havertz.
Werner has been directly involved in more Premier League goals this season than any other Chelsea player (11, with five goals and six assists).
However, the German striker has scored with just one of his last 42 shots in the competition, a strike against Newcastle United in February.
“Look at the games Porto have played in the Champions League,” Tuchel said in defense of Werner and Havertz.
“If you can show me some cool, smooth, pretty parts of any opponent, we can talk again.” I did not find it.
“They make your life very difficult, especially for the offensive players. They went through the group with 13 points. You can ask the group how easy it was to play against them.
“They didn’t have the easiest job at the start. They had a great defensive impact and they worked hard for us, Kai and Timo.
“It was hard for them to find spaces and create something, so we changed after 65 minutes, but we won’t lose faith and trust.
“We sometimes accept that sometimes it is difficult to have a big impact. Maybe Timo is a bit lacking in confidence in his finish, but Kai, I think, is very sure of himself.
“There are no greater concerns. It was just in this game that we tried to change the dynamics.
Chelsea have yet to lose on the road under Tuchel in the Premier League (W3 D2).
The shock against Palace comes after a dramatic week for the Blues, the victory of Porto after a 5-2 loss at home against West Brom.
Tuchel is keen to make sure his players don’t go up or down too much on a single result.
He added: “It’s my job to learn every day and from every game, from every situation that we have to face.
“I don’t have a big conclusion after the two games with the low and the high that we had in terms of results.
“It’s important to share my experiences and to do my experiences with the team. It’s the first time we’ve lost, a big loss, an unexpected loss in a strange game.
“We have a lot of positives together, so we had to adapt and react to them.
“I’m very happy that we bounced back immediately. We were unlucky in some situations in the game. It’s important to us now that we’ve been there.
“I hope we can start a winning streak all over again.”
Palace have kept five clean sheets in the Premier League at Selhurst Park since the start of the year, two more than in all of 2020.
But manager Roy Hodgson has lost six consecutive Premier League games against Chelsea.
The only opponent he has lost seven consecutive games against as the manager of the competition are Tottenham in a race that lasted between 2011 and 2019.