Ron Jaworski turns on Vikings game video and sees 'absolutely no difference' in Favre's ability despite four interceptions and an 0-2 start. From arm strength to footwork, everything checks out from one quarterback to another. Jaworski sees problems around Favre entering Sunday's noon game with the Lions in the Metrodome. "Maybe a couple of missed hot routes or a couple of bad breaks with interceptions, but his level of confidence throwing the ball the first few weeks has been great," said Jaworski, an ESPN analyst and former NFL quarterback. 'The offensive line has to become a lot more firm. Brett is not getting the protection he needs. He's a guy in duress."

By February, Minnesota defensive end Ray Edwards could be preparing for small-circuit amateur fights in Minnesota. Every few months, a new challenger could take him to Las Vegas or Atlantic City. In 18 to 24 months, he'll be a certified heavyweight prizefighter, which will be insurance for Edwards if he doesn't get a long-term NFL contract after this season or if the league locks out in 2011. "I'm really invested in this," Edwards, 25, says during a recent workout. "I'm looking forward to the future, whether that's in boxing or football. I don't know where I'll be. When the season ends, I'll start training for boxing heavily."

The San Diego Chargers have been offered a second-round pick and a conditional pick in 2011 by the Minnesota Vikings for wide receiver Vincent Jackson, three sources said Tuesday, but that deal looks dead because the Chargers have asked for a second- and third-round pick for 2011. Minnesota is willing to give San Diego additional compensation if they are able to agree to a long-term extension with Jackson.

Percy Harvin aggravated a right hip injury and said he will have an MRI on Monday. He had five catches for 32 yards.

Vincent Jackson is unlikely to receive a long-term deal beginning in the 2010 season. If he wants to leave San Diego, Jackson might be forced to accept a one-year deal worth $4 million to $6 million. The Vikings are currently talking about a trade for Jackson.

Brad Childress declined to comment on whether the Vikings might make a play for Vincent Jackson. "He's really not a guy I'm able to speak about for the fact that he's their property," Childress said. "I wouldn't get into any speculation on anybody on anybody else's roster."

The Vikings may be making a play for Chargers wide receiver Vincent Jackson, according to reports out of Minnesota. "Source tells me Vikes making a play for V Jack. Not sure if anything eminent. I have NOT confirmed or got a denial from Vikes," Henry Lake of KFAN wrote on his Twitter page.

The Vikings lost to the Saints 14-9 on Thursday night and coach Brad Childress says the team needs to get up to regular-season game speed. "There's no way we're up to the warp speed of an 18th game of the season," Childress said. "It's a work in progress on offense. It's from a number of different spots, just getting your center back, your wideouts or your quarterback. We need to get up to speed in a heck of a hurry. I believe we will."

Vikings wide receiver Percy Harvin says his heart stopped last month when he collapsed on the practice field. Harvin says his heart stopped for 10 seconds and doctors suspected he was not getting enough oxygen while sleeping. A few days later he underwent a sleep test, which determined that his heart stopped several times while he was asleep. Sleep issues are believed to trigger his migraines.

Vikings running back Adrian Peterson said after Thursday night's loss to the Saints that he wasn't tired. "Not at all," Peterson told reporters. "I'll do whatever it takes," he said when asked if he wanted the ball more. "Whatever it takes to help this team win. I don't know if Coach [Brad Childress] heard me, but I remember walking by in the second half on the sideline saying, 'Hey, give it to me. Feed me.' I don?t know if he really heard me. But there's a lot to learn from this game."