49ers' Reuben Foster dealing with shoulder sprain

San Francisco 49ers inside linebacker Reuben Foster is dealing with a "mild AC joint sprain" in his surgically-repaired shoulder.

What It Means:

The 49ers are insisting it's a "completely different" injury than Foster's rotator cuff issue, but we'll see how true that ends up being. The team re-signed inside linebacker Shayne Skov on Thursday, which indicates some concern. Foster was just officially anointed a starter on Tuesday and, for now, it appears he will be ready for Week 1.

Our models project the Niners' defense to turn in the ninth-worst fantasy season among defensive units this year. They will be a weekly target for fantasy players.