The 49ers have placed CB Emmanuel Moseley on IR with an ankle injury. That knocks him out until at least Week 17. With CB Dontae Johnson ruled out for a personal reason, San Francisco heads into today's matchup with the Bengals missing 2 starting corners. That can only enhance the matchup for Bengals WRs Ja'Marr Chase and Tee Higgins.

The 49ers have ruled CB Emmanuel Moseley (concussion), CB Dontae Johnson (groin) and CB K'Waun Williams (knee, hip) out for Sunday's game against the Dolphins. CB Ahkello Witherspoon (hamstring) is also questionable. He missed last week's game against the Eagles but managed limited workouts this week. We'll check on Witherspoon's status Sunday, though he's not much of an IDP factor either way. The big takeaway here is that the Niners will miss at least 4 of their top 6 corners -- with Richard Sherman still on IR. That can only help Miami QB Ryan Fitzpatrick, WR DeVante Parker and TE Mike Gesicki.

Niners CB Emmanuel Moseley left Sunday's win over the Giants early with a concussion. We'll see whether he has a chance to make it back for the Week 4 Sunday night clash with the Eagles. Dontae Johnson took over Moseley's spot after he departed, finishing with 2 tackles and a pass breakup.