They've faced Brandon Marshall. They've faced Larry Fitzgerald. They've faced Sidney Rice and Golden Tate. They've faced Calvin Johnson not once, but twice.
But the Vikings haven't faced anything like they're going to face on Sunday against the Packers at Lambeau Field. The Packers are one of only two teams that have four receivers with at least 35 catches and two touchdowns. Of those three teams, the Packers are the only one to have those four targets and their best receiver, Greg Jennings, returning this week after missing the past seven games because of a sports hernia surgery.
So, Alan Williams, how big a test are these Cheesehead receiving targets?
"The biggest test we'll face all year from a group standpoint," Williams said. "You have to defend everybody they have on the field. You can't just take away one guy. If you take away one guy, another one will hurt you. We'll have to be honest and play sound, fundamental football and everyone will have to stand up and do their job this week because they all can hurt you."
The Packers have Randall Cobb with 58 catches, 613 yards and seven TDs. they have Jordy Nelson with 45 catches, 648 yards and six TDs. They have James Jones with 42 catches, 495 yards and eight TDs. And they have tight end Jermichael Finley with 35 catches, 388 yards and two TDs.
The only other teams with four targets that have at least 35 catches and two TDs? Peyton Manning's Broncos and Drew Brees' Saints.
Williams defends Allen ... sort of: Williams was asked what he thought of the block that defensive end Jared Allen threw on Sunday. The blind-side shot didn't draw a penalty, but it did blow out Lance Louis' knee and cost Allen a fine for 21 grand.
Said Williams, who hadn't read the league's report on the play: "[Allen] is trying to get a block to spring our guy through to get a touchdown. I'm not sure. It's a little bit, you can't see it great on the film. It is what it is. The NFL gets to make the final choice on that and we respect their decision."