Roback has not yet made his debut in the A-team in a competition context, but is part of the 23-man squad for Sunday's league meeting.
He played in two training matches during the pre-season.
Whether the Swede gets playing time against table six Sassuolo remains to be seen.
Milan tops the series after twelve games played.
Zlatan Ibrahimovic is injured and will be out for at least the rest of the year, according to Italian media.
- Before yesterday's training, we were sure that he would be available and that he would be able to play a little tomorrow.
Unfortunately, there has been a small setback, says Milan coach Stefano Piolo according to the club's website.
- I suffer with him because he really wants to help the team.
But this kind of thing happens ... He will come back stronger than ever and we have other options that can play, Pioli continues.
CLIP: Zlatan misses the rest of 2020, according to Italian media (December 18, 2020)
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Zlatan Ibrahimovic will miss the rest of 2020, according to several Italian media.
Photo: Bildbyrån