Rudy was left bleeding after taking an accidental boot to the face from Sweden defender Andreas Granqvist in the first half of Germany's dramatic 2-1 victory over the Scandinavian side on Saturday.

"[Sebastian] Rudy underwent surgery [for the nasal bone fracture] yesterday, we have to be prepared for him to be sidelined for the next match [with South Korea]. If there is a possibility for him to play with a protective mask we will certainly consider it," Sorg said, as quoted by FIFA's official website.

Germany are currently three points behind Group F leaders Mexico and will play South Korea in Kazan on Wednesday.