Here are some key matchups that may determine Sunday night's outcome:

Vikings OLB Chad Greenway vs. Eagles RB LeSean McCoy

If anybody is going to shut down McCoy, it's likely to be Greenway. An outside linebacker, Greenway is adept at following the ball, and he leads the Vikings with 127 tackles and 97 solo stops. McCoy's job, as always, will be to offer an alternative to the Michael Vick Air Show, so he may try to run to wherever Greenway isn't.

Eagles QB Michael Vick vs. Vikings RDE Jared Allen

Allen can disrupt an offense in a hurry, and his 91/2 sacks on the season are tops on the Vikings. If the 6-foot-6, 270-pounder can get past Eagles left tackle Jason Peters, Vick will need all of his wily ways to avoid getting hammered.

Eagles CB Asante Samuel vs. Vikings WR Percy Harvin

Samuel is due for a pick; he has not had one since Nov. 21 against the Giants. He missed three games with a sprained knee, so you know he's got to be hungry. Harvin leads the Vikings with 56 catches, averages 12.5 yards per catch, and has a team-high five receiving touchdowns. Think the Vikings may try to get him one-on-one with Dimitri Patterson instead?

Vikings QB Joe Webb vs. Eagles RDE Trent Cole

Cole, who leads the Birds with nine sacks, does not relish dropping off the line to cover backs and tight ends. So look for him to really bust it when he does get a chance to rush the rookie Webb. Webb had a rough time last weekend in replacing Brett Favre after one quarter. He was sacked three times by the Bears and tossed two interceptions. Good luck.

Eagles coach Andy Reid vs. Vikings interim coach Leslie Frazier

Frazier made his NFL coaching debut as the Eagles' defensive backs coach under Reid from 1999 to 2002. So Reid, as loyal as they come, will certainly go easy on his old buddy. Heh, heh.