Adrian Peterson headed for CT scan on sprained foot

Adrian Peterson will undero further testing to find out the severity of his foot injury.

EDEN PRAIRIE, Minn. -- Adrian Peterson believes he has dodged a serious injury but is headed for another test to reveal the extent of the right foot injury that knocked him out of Sunday's game.

Peterson, in a walking boot, said Monday that tests have ruled out a Lisfranc injury, which would have ended his season and he was scheduled to have a CT scan later. Peterson said X-rays and a magnetic resonance imaging test didn't show any broken bones or torn ligaments.

"Of course, the X-ray is something they do that's like traditional when you have any type of injury during the game," Peterson said. "The CT looks at the bone in-depth. Just to be able to look at the bone to make sure everything is good. Obviously the X-ray can show any type of compound break or anything like that. That will show in the X-ray. Bu they do a great job of making sure they're able to diagnosis exactly what it is. We're just going through the protocol."

Peterson, who has been playing through a groin injury the past four weeks, was injured when Ravens' linebacker Arthur Brown tried to tackle him early in the second quarter on a pass. Brown fell on Peterson's feet and legs and Peterson rolled over in pain immediately. Peterson finished with just 13 yards rushing on seven carries in the snowy conditions.

"Initially you don't know exactly what's going on when you're feeling it," Peterson said. "That initial contact definitely didn't feel good. I was kind of worried. But kind of cleared up a little bit after getting the MRI. I'll see how things play out after the CT scan."

Peterson said he expects to play on Sunday, but coach Leslie Frazier said Peterson will also see a foot specialist to determine the extent of the injury, which was initially diagnosed as a sprain, and when Peterson might be able to return.

"Until I get more information this afternoon, it's hard to say," Frazier said. "Hoping, as we all are, that he's able to get back on the field soon."

Peterson said he was sore on Sunday, but was happy to hear a Lisfranc injury has been ruled out, which would have ended his season and often comes with a six-week or longer recovery.

"They ruled that out," Peterson said. "Of course that was one thing that will pop up in your mind. That's one thing I didn't want to hear so it feels good to have that cleared out."

Peterson entered the week as the league's leading rusher, but with 1,221 yards is now trailing Philadelphia's LeSean McCoy (1,305 rushing yards), who had 217 yards on Sunday. No 2,000-yard rusher, as Peterson was last season, has ever led the league in rushing the following season.

With Minnesota (3-9-1) officially eliminated from the playoffs, Frazier was asked if Peterson would be held out to heal completely from the foot and groin injuries.

"Depending on what we find out, it will factor in," Frazier said. "We'll find out more this afternoon and make a decision from there. But you can't ignore that fact."

Backup Toby Gerhart is dealing with a hamstring injury, which occurred on a 41-yard touchdown run that temporarily gave the Vikings the lead in Sunday's back-and-forth game.

"Depends on to what degree the hamstring injury is, and we'll know a little bit more on Wednesday when we get out and started moving around a little bit," Frazier said of Gerhart's availability. "Probably after that day, or maybe Thursday, we'll have a better idea."

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