Vikings coach Mike Zimmer and general manager Rick Spielman will reportedly meet with Adrian Peterson in Texas today, apparently because Peterson — who missed all but one game last season after whipping his son with a switch — has some hurt feelings.

It's twisted, but sports are twisted. The upshot is the Vikings can now talk to Peterson — and next week, when the league season changes over and free agency begins, they could trade him.

The prospect of trading Peterson — combined with Dallas' potential interest in him — has Vikings fans dreaming of a reverse Herschel Walker deal, whereby Minnesota would get a massive haul in return.

That dream should have been immediately realized as folly because the market for and importance of running backs is vastly different than it was a generation ago, but if it wasn't, some other news Wednesday should snuff it out completely.

The Eagles have traded LeSean McCoy to the Bills for a young linebacker coming off of a torn ACL, Kiko Alonso.

That's it. No more. A clean 1-for-1 swap.

So now we know the trade value for an elite NFL running back (McCoy has nearly 3,000 yards rushing combined in the past two seasons) who is a better pass-catcher than Peterson (three years of at least 50 catches, including one year with 78), is three years younger than Peterson (McCoy turns 27 in July), is due to make less money and count less against the salary cap than Peterson and whose most significant proven off-field transgression is that he is a bad tipper.

That value is one young linebacker — a former second-round pick who had a very good rookie season, but one who is coming off a very serious injury and isn't doing full-speed drills yet.

We have to imagine Peterson's trade value is significantly less than that. The Vikings and Peterson might end up parting ways regardless, but now even more so than a day ago we should know not to expect much in return.