Minnesota's Adrian Peterson, who went down near the end of the regular season in 2011 with a torn ACL, has been rehabbing for Sunday's opening game the entire offseason. Still, the Vikings, coming off a forgettable 3-13 campaign with inexperienced quarterback Christian Ponder taking a majority of the snaps, will wait until Sunday to make the final call on Peterson's availability.
Meanwhile in Jacksonville, Maurice Jones-Drew, the NFL's rushing leader of 2011, unsuccessfully ended his 38-day holdout for a new contract on Sunday and Jaguars new head coach Mike Mularkey has indicated that Jones-Drew will begin the 2012 season as a backup to starter Rashad Jennings.
Jacksonville, 5-11 in 2011, enters the second season with quarterback Blaine Gabbert under center, after he played in 15 games a year ago.
Kickoff is set for 1 p.m. ET at Mall of America Field in Minneapolis, Minn., and the contest will air on CBS. Currently, oddsmakers have the Vikings favored by 4.5.