NFL: Vikings star rusher Peterson undergoes surgery

Minnesota Vikings running back Adrian Peterson underwent successful hernia surgery on Thursday to repair a torn abdominal muscle, the National Football League team announced.

"We expect a speedy recovery with no long-term concerns," the Vikings said in a statement following the operation by William Meyers in Philadelphia.

Peterson ran 348 times for 2,097 yards and 12 touchdowns last season, falling just shy of the NFL one-season record of 2,105 rushing yards established by Eric Dickerson in 1984.

And Peterson, who also made 40 catches for 217 yards, sparked the Vikings into the NFL playoffs only one season after suffering torn knee ligaments.

Minnesota was ousted by Green Bay in the opening round of the post-season before the Baltimore Ravens went on to win Super Bowl 47 last Sunday, with a thrilling 34-31 victory over the San Francisco 49ers.