RB Kolby Smith was the lone player missing. He rode the stationary bike the rehab area instead.
Smith suffered an injury several weeks ago and has been hobbled ever since. He's had just two carries in the last two games. If he can't go on Sunday, expect Dantrell Savage to take some of his carries.
Smith and Savage both were listed as limited participants in yesterday's practice according to the official NFL practice report. Savage ran drills today so his recovery seems to be better than Smith's.
As Looney notes, not having Smith and/or Savage would mean an increase in carries for Jamaal Charles and potentially a decrease in his return duties.