Vikings guard Nick Easton, who hasn't practiced since last week, remained out on Monday because of what league sources said were neck and back issues.
Easton, who played 12 games for the Vikings last year before fracturing his ankle, has been projected as the team's starting left guard again after the team placed a second-round tender on him as a restricted free agent last spring. Easton had been playing center with Pat Elflein on the physically-unable-to-perform list.
The last time Easton practiced was Thursday, when he misfired on two snaps to Kirk Cousins, including one that ended practice. The only time Easton has been seen on the practice field since then was when he walked out with the Vikings' other injured linemen to take in the team's Saturday night practice.
With Easton, Elflein and right guard Mike Remmers — who is battling an ankle injury — out again Monday, the Vikings put Tom Compton at left guard, second-year man Cornelius Edison at center and Danny Isidora at right guard.
"Edison's a fighter. He's powerful," coach Mike Zimmer said. "Compton is playing like a veteran. Isidora, I thought he was better today. Last week wasn't his best week but we talked about some things, so I think he'll be better."
Surging WR candidate
The Vikings liked receiver Brandon Zylstra enough to outbid other NFL teams for his services by guaranteeing him $275,000 out of the Canadian Football League. Now Zylstra, the New London-Spicer graduate, is showing why during training camp practices.
Zylstra has stood out with highlight-reel grabs, including a couple sideline snags during Saturday night's practice at TCO Stadium in Eagan.
"You always say it's kind of a nice, nifty grab, but at the same time you're trying to make those look routine anyway," Zylstra said.