The hamstring injury studies I’ve read conclude Milano will miss 2-3 games. For Tremaine most of the things I’ve read on AC joint sprains, dislocations is 4-12 weeks.
Obviously we don’t know the specifics: MRI, severity or specific location, anatomy involved of either players injury, so this is all speculation.
I’ve read a good bit on both injury types and sports science is certain on one thing - if a player rushes back the re-injury risk goes up by multiples.