SETTING THE SCENE: After coach Mike Zimmer canceled the morning walkthrough, the Vikings made their return to the practice fields in Mankato after Sunday's Hall of Fame Game. It was partially cloudy with the temperatures sitting around 80 degrees as the Vikings practiced in full pads.

VIKINGS GET A SCARE: It was a pretty uneventful practice until running back Adrian Peterson burst through the line of scrimmage on an inside running play. Peterson collided with a defender and crashed to the ground. He limped to the sideline, and after he re-entered practice for one play, Peterson left the practice fields and did not return. It sounds like he is fine, but there were some tense moments there after he walked off.

STEP ON UP, JERICK: After Peterson left practice, it was second-year back Jerick McKinnon who got the bulk of the first-team work. He was very active as a pass-catcher and also showed off his burst in the running game.

WAYNES STILL FEISTY: The three penalties Trae Waynes was flagged for on Sunday night didn't lead to any timidness from the rookie cornerback in practice. Backup quarterback Shaun Hill attacked Waynes in one 11-on-11 drill by throwing a deep ball down the right sideline to Cordarrelle Patterson. Waynes stalked the receiver in the trail position before batting the ball out of his hands, knocking Patterson to the ground in the process.

PRUITT KEEPS ON ROLLING: Rookie tight end MyCole Pruitt, who scored a touchdown against the Steelers, flashed again in practice. Pruitt made a sweet catch over linebacker Josh Kaddu along the right sideline. Later in the afternoon, he got some more action with the first-team offense.

CAMP CHATTER: "The two plays he did, he did good, which is a small sample size. I don't know what Pro Football Focus had on it." — Zimmer taking another jab at PFF while answering a query about Linval Joseph.

INJURY REPORT: Outside linebacker Anthony Barr (knee) and fullback Zach Line (leg) returned to practice after missing Sunday's Hall of Fame Game. Sitting out were offensive lineman David Yankey, defensive end Scott Crichton, defensive tackle B.J. DuBose, tight end Brandon Bostic, cornerback Josh Robinson and wide receiver Gavin Lutman.