Chelsea will have Cesar Azpilicueta to travel to Lille in Tuesday's Champions League last-16.
Blues captain Azpilicueta has returned from a back injury.
Mason Mount returned to training on Monday and could be in the squad for the plane to France, however, it is unlikely he will start.
However, Callum Hudson-Odoi has not been able to recover in time from an Achilles problem.
"Azapi looks a lot better than Calum," Tuchel said in his pre-match press conference.
"Calum didn't train yesterday, but Azpi did train and there was no reaction, so if it stays like this he is available for tomorrow.
"Mason had a really good individual session. He'll try to get back into team training today but that was probably a little too long to start. Maybe he's in the team but he hasn't trained with the team yet. "