Percy Harvin totaled 192 all-purpose yards for Minnesota (1-0), which sent the game into overtime thanks Walsh's 55-yard field goal at the end of regulation.

Peterson suffered a torn ACL and MCL last Dec. 24, and was questionable heading into this game. But he looked as explosive as ever while surpassing Robert Smith as the franchise's all-time leading rusher with 6,841 yards.

Maurice Jones-Drew, the 2011 rushing champion who ended his messy 38-day holdout last week without a new contract, ran for 77 yards on 19 carries for Jacksonville (0-1). He played more than expected after starter Rashad Jennings left with a knee injury.

Minnesota received the ball first in overtime and drove to the Jacksonville 21, where Walsh connected on the go-ahead kick. Per the NFL's new overtime rules. Walsh's field goal didn't automatically end the game. Jacksonville was afforded a chance to respond, but the Vikings' defense didn't budge.

Second-year quarterback Christian Ponder (20-of-27, 270 yards) rallied Minnesota after Jacksonville QB Blaine Gabbert, maligned as a rookie, connected with Cecil Shorts for a go-ahead, 39-yard touchdown with 27 seconds left. Shorts, a fourth-round pick in 2011 who had just two catches last season, made a diving catch on a post-corner pattern and fell just inside the goal line.

Rookie Justin Blackmon hauled in the two-point conversion for a 23-20 lead, but the Vikings quickly responded. On the ensuing drive, Ponder connected with Devin Aromashodu for 26 yards and then hit tight end Kyle Rudolph to set up Walsh's game-tying field goal.

GAME NOTEBOOK: Jennings started in place of Jones-Drew and ran for 31 yards on eight carries before leaving. … Gabbert was 23-of-39 for 260 yards and two touchdowns. … Jones-Drew ran for 36 yards on eight carries in the opening half. … The Vikings allowed a sack for the 33rd straight game – the longest streak in the NFL. … Blackmon had three catches for 24 yards in his debut.