Andreas Christensen's injury is not as bad as first feared and he has an outside chance to be fit or the FA Cup final on Saturday.
Christensen limped off during Chelsea's win at Manchester City on Saturday, sparking concerns the season might be over for the Danish defender.
He will not be available against Arsenal on Wednesday but scans on Monday revealed the damage was not extensive.
'It was better than we feared, much better,' said head coach Thomas Tuchel.