Borussia Dortmund boss Peter Bosz does not know if leading scorer Pierre-Emerick Aubameyang will be available to face Hannover this weekend.
Aubameyang topped the Bundesliga scoring charts last term and has been similarly prolific in 2017-18 to date, with 15 goals in 14 appearances across all competitions.
The Gabon striker was denied the chance to add to that tally during Tuesday's 5-0 DFB Pokal win over Magdeburg after he was sidelined with muscular soreness.
Speaking at a news conference ahead of Saturday's match, Bosz confirmed Aubameyang's injury had not completely subsided.
"Mario Gotze is fit to play, but I have to wait and see about Christian Pulisic (calf) and Aubameyang," he said.