Minnesota Vikings running back Adrian Peterson has returned to Minnesota after spending a day away from the Vikings while attending to a family matter in Sioux Falls that has been described as "tragic."
Peterson was spotted in South Dakota yesterday at a bar and grill, and details have emerged today that suggest the situation is more serious than originally reported.
The Argus Leader had the most detailed tweet on the subject.
Local media outlets, citing a tabloid report from TMZ, report that Adrian Peterson's son was assaulted and has severe head injuries.
Sean Jensen of the Pioneer Press talked to Adrian Peterson's father Nelson today.
Peterson is reportedly back at practice Friday, and is scheduled to address the media after the Vikings are finished on the field.
The Vikings host Carolina at noon Sunday.