Kai Havertz has taken to social media for the first time since he wasn't pictured in training with the rest of the Chelsea squad.
The 21-year-old has missed the Blues last two matches against Tottenham Hotspur and Sheffield United after picking up an issue in training last week.
Havertz did return to training prior to the win against Sheffield United but wasn't included in the matchday squad, and Tuchel didn't comment on his absence.
Ahead of Chelsea's FA Cup tie on Thursday against Barnsley, Havertz was then not pictured amongst the group on Tuesday during the training session at Cobham, causing concern over his fitness.
Tuchel wasn't asked in his pre-match press conference on Wednesday about the German's fitness, but Havertz has taken to social media to let fans know he is OK.
It remains unclear for Havertz's absence and whether he is carrying or knock.
Changes will be made by Tuchel but whether Havertz will be involved or not, we will have to wait until the Blues arrive in Yorkshire and the teamsheets are confirmed.
"There is a high possibility we see a lot of changes. First of all, everybody who is on the pitch tomorrow deserves to be on the pitch. So there will be guys tomorrow who suffered a little bit from my decisions in the last few games."