Borussia Dortmund coach Edin Terzic admits Jadon Sancho is battling a knock.
The Manchester United loanee is gradually finding his form with BVB, though has now copped an injury.
Terzic said: "He will be put under individual programme so that he can then, if possible, we'll organise the final training session tomorrow.
"It is nothing serious. At least nothing long."
BVB meet Eintracht Frankfurt on Sunday.