Antonio Conte says Tiémoué Bakayoko has plenty to improve on despite the French midfielder’s excellent start to his Chelsea career.
A knee problem meant Bakayoko, 23, had to wait for his Blues debut following his summer move from Monaco.
He has since been hugely impressive, but Blues boss Conte believes he can get even better.
“Bakayoko is 100% fit and is playing very well,” he said.
“For sure he has a lot of room for improvement. He’s a young player and sometimes he makes good things and negative things.
“We have to try to work together to increase the positive things during games, but he is showing is a really good player and an important player for us.”
Conte has also backed Andreas Christensen, who is set to start against Manchester City on Saturday in place of the suspended David Luiz.
Pep Guardiola was also speaking ahead of the high-profile Premier League clash against defending champions Chelsea.
The warm glow of back-to-back Champions League group stage wins has long since disappeared for Pep Guardiola.
The club were superb in their 2-0 defeat of Shakhtar Donetsk, but news of a long-term injury to wing-back Benjamin Mendy and a car crash involving striker Sergio Agüero has complicated matters ahead of the visit to Stamford Bridge.
Giuardiola also spoke about the challenge of facing Antonio Conte’s Chelsea, and warned his players to be ruthless in their attempt to claim all three points.
“I admire the Chelsea manager and the way they play. They can play amazing counter-attacking football. They control all the aspects of the game and that is why they won the Premier League and why they won against a good team three days ago.
“It is a team we have to beat. When they have one chance, they are killers in that situation. That is why Chelsea are a good team.”
Defending champions Chelsea are third in the league, three points behind Guardiola and City.