Draughn (knee) didn't take part in Wednesday's walk-through, but offensive coordinator Geep Chryst considers the running back day-to-day, Cam Inman of the San Jose Mercury News reports.
Draughn has been the 49ers' lead back for six consecutive games, and while he's only dashed for 3.4 YPC and one touchdown during that span, he's augmented his line with 23 receptions (on 30 targets) for 174 yards. After an abbreviated appearance Sunday against the Bengals, he was diagnosed with a knee sprain, according to Chris Biderman of the Associated Press. Meanwhile, two practices remain to prove Draughn's health, with Friday's injury report potentially shedding light on his Week 16 status.