BBAO: Adrian Peterson to play Sunday

We're Black and Blue All Over:

Adrian Peterson made clear on the first day of training camp that he didn't care whether he played in the preseason. "It worked out pretty well last year," he noted about his MVP campaign in 2012, which began with him sitting out the preseason while he rehabilitated from knee surgery.

He hasn't appeared in the Vikings' two preseason games, in which the first-team offense has scored three points, but he is scheduled to appear in Sunday night's nationally televised game at the San Francisco 49ers.

There is no doubt that Peterson would be ready for the season without a single preseason snap. We learned that last year. But football is a team game, and based on what coach Leslie Frazier told reporters, the Vikings put at least some value in getting live-game action for the full group that will take the field in Week 1 against the Detroit Lions.

"Without Adrian Peterson in our scheme, it impacts our offense tremendously because he's the focal point,” Frazier said, according to Mark Craig of the Star Tribune.

In other words, Peterson's presence could give the Vikings a more genuine opportunity to work on the other parts of their offense -- namely the passing game -- against defenses more similar to the ones they'll face in the regular season. Or something like that.

Continuing around the NFC North:

  • The Vikings will use Sunday's game to prepare for seeing the read-option during the season, according to Sean Jensen of the St. Paul Pioneer Press.

  • The Vikings placed defensive lineman Christian Ballard on the active/left squad list while he deals with a personal matter. More from Andrew Krammer of 1500ESPN.com.

  • The Vikings have used the shotgun formation extensively this summer.

  • Justin Rogers of Mlive.com on Lions receiver Patrick Edwards: "Patrick Edwards continues to confound. He didn't help his chances of winning the punt return job, muffing two attempts on Sunday. With just 10 receiving yards in two preseason games, if Edwards can't secure a job as a return man, he's looking less and less like the roster lock he was at the beginning of training camp."

  • The Lions' battles at right guard and right tackle appear as tight as ever, according to Josh Katzenstein of the Detroit News.

  • Rookie guard Larry Warford said he doesn't mind if he has to wait a year to start. More from Dave Birkett of the Detroit Free Press.

  • My post on the Lions promoting rookie cornerback Darius Slay to the first team.

  • Rookie running back Johnathan Franklin hasn't been impressive in Green Bay Packers training camp, writes Bob McGinn of the Milwaukee Journal Sentinel.

  • Packers quarterback B.J. Coleman did some nice things Saturday night at the St. Louis Rams, but his odds of making the roster are slim, writes Jason Wilde of ESPNMilwaukee.com.

  • Rob Demovsky of ESPN.com on Packers defensive lineman Johnny Jolly: "What once looked like it may be a charity case now looks like legitimate help for the defensive line."

  • Former Packers safety Nick Collins can't bring himself to say his career is over. Scott Venci of the Green Bay Press-Gazette has a profile.

  • The Chicago Bears recently cut the salary of offensive lineman J'Marcus Webb in half, and there is still no certainty he will make the roster, writes Brad Biggs of the Chicago Tribune.

  • According to Mark Potash of the Chicago Sun-Times, the last team to open a season with two first-day rookies on the same side of the offensive line was the 1995 expansion Carolina Panthers. The Bears could do it with right guard Kyle Long and right tackle Jordan Mills.

  • The Bears signed quarterback Jordan Palmer to give them an additional option to Trent Edwards as their No. 3 quarterback, notes Michael C. Wright of ESPNChicago.com.