Peterson continued to be limited to only a few reps when it was only the offense together but sat out during individual drills and full-team work when the offense went against the defense.
“The week before (training camp) working out he pulled his hammy a little bit,” Zimmer said. “He can do things; he just can’t turn it all the way loose. We’re just being careful with him.”
Peterson once again worked on a side field with an athletic trainer during individual drills and was limited to observing during full-team work.
Jerick McKinnon took most of Peterson’s normal workload with the first-team offense.
“It’s good we get to see some of these young backs, but (Peterson) will be out here fairly soon I think,” Zimmer said.
Cordarrelle Patterson, who left practice on Friday with a shoulder injury, was an observer throughout practice on Saturday. He kept his left arm relatively still and close to his body during and after practice.
“It’s going to be a few days, but he’ll be alright,” Zimmer said.
A source said he didn’t think there was a separation of the shoulder.
Also limited to observing practice was guard Mike Harris (non-football illness list), Taylor Heinicke (non-football injury list), and the two players on the physically-unable-to-perform list – tight end Rhett Ellison and defensive tackle Kenrick Ellis – also didn’t practice.
“It’s really just a medical deal which has got to get cleared up,” Zimmer said of Harris. “As soon as that happens, then he can come (back). I have no idea how long it’s going to be.”