The Facts: Following up on a previous item. ... A source said Sunday that Peterson won't attend Monday's first day of Vikings voluntary offseason workouts, but it has nothing to do with the running back being disgruntled. The source said Peterson wouldn't be on hand even if he weren't having problems with the Vikings.

Diehards Line: Peterson, who missed 15 games last season and was reinstated last week from an NFL suspension for a child-abuse incident, would prefer to play elsewhere in 2015 because he doesn't believe some team officials did enough to get him back on the field in 2014. But Pioneer Press staffer Chris Tomasson notes the eight-year veteran historically hasn't shown up for the first day of voluntary workouts and his attendance at them usually has been sporadic. Peterson has a $250,000 workout bonus, but the source said that is tied only to 90 percent participation in organized team activities and minicamps and doesn't involve conditioning activities. The Vikings have OTAs May 26-28, June 2-4 and June 8-11 and a mandatory minicamp June 16-18. While it remains to be seen if Peterson, if not traded, will show up May 26, the source told Tomasson he will continue working out in Houston. Training camp will begin around July 26. If Peterson is traded before then, many believe it would happen no later than the April 30-May 2 NFL draft.