Shanahan: Jordan Mason "Day To Day" With Shoulder Injury

49ers HC Kyle Shanahan labeled RB Jordan Mason "day to day" with the sprained AC joint he suffered in his left shoulder in Thursday night's win over the Seahawks. Mason has another nine days to heal up for a Week 7 showdown with the Chiefs. It sounds like he has a good chance to be ready for that one. We'll track his status throughout next week.