Black and Blue all over: Peterson in passing game

Posted by ESPN.com's Kevin Seifert
How does the NFL's top running back improve? By working on his receiving game, of course. That's what Minnesota's Adrian Peterson did over the offseason, hoping to smooth out the rough edges in his pass blocking and route running in hopes the Vikings would incorporate him more into the passing game.

We noted earlier this month that Peterson was dropping an inordinate number of passes in practice, but he said this week that he has taken a "giant step forward," according to Chip Scoggins of the Star Tribune.

Peterson: "I'm really just focusing on the little things -- getting my proper depth and recognizing the coverage that the defense presents better. I'm definitely moving forward and continuing to improve each day."

It's unlikely Peterson will get much of a chance to test his progress in Friday's preseason opener at Indianapolis. Coach Brad Childress limited his preseason snaps in 2008 and is likely to do the same this year.

Continuing around the NFC North: