The defender recently returned to action after a lengthy spell on the sidelines with a hamstring injury and impressed, particularly in the weekend win over Burnley at Turf Moor where he registered a goal and an assist in our 4-0 away win.

However the boss revealed at his pre-match press conference, that was conducted in person in the media room at Cobham for the first time this season, that the England international has suffered an injury and could miss out the Premier League tie at Carrow Road.

‘Everybody was on the training pitch today except for Ben Chilwell and Reece James, who has some muscular problems after his three games,’ Tuchel reported.

‘He has muscular problems in his other leg, not the previously injured leg, but he will still need some further assessment.

‘He felt it during the match and it didn't get any better. Today there will be further examinations. It's obvious what he can give to our team, so it is not good news at the moment.

Ben Chilwell was pictured out on the grass at Cobham yesterday but Tuchel confirmed that it is too soon to discuss a return to action for the left-back.

‘Chilly was back out on the grass training and I think the one minute he was out on the grass they took a photo of him!’ Tuchel added.

‘The weather made it possible he could do the exercise outside and it was good to see, but he still has a long way to go.

‘They made him smell the grass and get a bit excited, but nothing close to football or team training. There isn’t any chance he will be back before the end of the season.’

The boss was also asked to comment on whether there was any update on the future of Andreas Christensen, with the defender’s contract set to expire this summer.

‘We hear the rumours with Andreas and it’s been like this for many months,’ the boss said.

‘He has not signed yet so we can’t communicate anything. We are not happy about it and personally and the club representatives think it’s best for him to stay here. We rely heavily on him.

‘We have to consider the possibility that he may leave us. Will we like that? No. Will we live with it? Yes.

‘If things happen, it's normally the best thing not to take them personally. He is still our player and we will do what is best for us while he is a Chelsea player.

‘He knows we appreciate him a lot and I think it's a crucial point in his Chelsea career; he is in a perfect age and perfect moment with the system we play and the guys at his side.

‘I think it's the decisive moment to step up and be a huge player for Chelsea in the next years. If he decides otherwise, I will not take it personally.’