Peterson has pulled hamstring, so Vikings being cautious (Yahoo Sports)

The Minnesota Vikings have taken a cautious start to the season with running back Adrian Peterson, because of a hamstring pull he suffered prior to training camp while working out. The Vikings kept kickoff returner/wide receiver Cordarrelle Patterson out of practice Saturday, following an injury around his left shoulder Friday that occurred while he fell trying to make a catch. Offensive lineman Mike Harris is dealing with an undisclosed illness that's keeping him out of practice.