NFC North camp update

As in previous years, I’ll do my best to infuriate you with the proportions of our training camp coverage. I typically try to emphasize the team I’m visiting while catching up on the other three as time permits. Usually, it all evens out. The only requirement is patience.

In that vein, we’ve already checked in on the Minnesota Vikings. So let’s catch the couple points from the first day of practice in Green Bay and Detroit.

Green Bay Packers

Safety Atari Bigby is likely to miss a week or more because of ankle injury he said he suffered during Friday’s conditioning test. Bigby told reporters that he is “very concerned” about the injury and added: "This is something that I've already been down this road and hopefully we can resolve it and I won't have to look at it again and we can laugh at it in the future." In the meantime, rookie Morgan Burnett remains in the starting rotation. …

Rookie cornerback Sam Shields had a strong first day of practice, reports Kareem Copeland of the Green Bay Press-Gazette. Shields intercepted a Matt Flynn pass and also knocked down several other passes. He is considered a return prospect first and foremost.

Detroit Lions

Safety Louis Delmas was among six players placed on the physically-unable-to-perform list. Coach Jim Schwartz said Delmas is still recovering from a groin injury he suffered during minicamp. The injury itself is healed, but Delmas’ conditioning suffered as a result. Schwartz said that neither Delmas nor the other five players -- defensive end Jared DeVries, tight end Will Heller, tight end Brandon Pettigrew, safety Ko Simpson and cornerback Jack Williams -- will have long-term stays on the list.

On Delmas, Schwartz said: “What we’ll do with him is keep him on the side and work him into shape. The last thing we want to do is take a guy that’s healing and looking good and all of a sudden put him out too quick. I don’t want to put any kind of time table on it but he’ll be back pretty soon.”

… Running back Kevin Smith, on the other hand, was cleared for practice less than eight months after tearing his anterior cruciate ligament. Schwartz: “Kevin Smith was considered to go on the PUP, but he’s been here an awful lot and he’s done an awful lot and he’s recovered well. He was able to go in and go pretty much without any limitations."