Vikings star running back Adrian Peterson offered a simple explanation as to why he missed the team bus heading to the stadium last week in Chicago. Peterson told reporters at Winter Park yesterday that he overslept on Sunday morning. Head coach Leslie Frazier has said that missing a team bus is a serious situation that can’t be taken lightly. Peterson played in the game last Sunday, a 28-10 loss in Chicago. 6-and-5 Minnesota is at 7-and-4 Green Bay in a key divisional game this Sunday at noon.