The Vikings (2-2) return to action at noon (CT) Sunday by hosting the Chiefs (1-4), who have three losses to unbeaten teams this season.

Here are four things that Kansas City's coaches had to say about Minnesota Head Coach Mike Zimmer and players in videos posted on the Chiefs official site this week.

1. Chiefs Head Coach Andy Reid on Zimmer:

"He's a coach's kid, grew up around football and he's got a good system. He's got those guys playing hard and aggressive and within a good system."

2. Chiefs Defensive Coordinator Bob Sutton on Vikings running back Adrian Peterson:

"Adrian is one of the best backs going ever, probably, a guy with great speed and is very physical. He takes great pride in yards after contact. The speed factor — if he makes it to your second or third level, it's tough. You're dealing with a guy with breakaway speed. …

"You've got to do a great job of trying to slow him down in the line and not let him have clean lanes into the second level. This guy demands that every player on defense think he's the guy involved in stopping (Peterson) because as soon as you relax on the back side of a play, if he makes it through that first level and you're not at full-tilt, you've got no chance."

3. Sutton on Vikings quarterback Teddy Bridgewater:

"I like him. I think he's a really good operator. We're looking at him from afar, but he does a great job of taking care of the ball. I don't think he jeopardizes the football at all.

"He has escapability, but he's done a great job of staying in the pocket and playing the play out. I just think the guy is going to be a really good football player."

4. Chiefs running backs coach Eric Bieniemy, who held the same position with the Vikings from 2006-10, on Minnesota's defense.

"They've got a tremendous defense. Those guys play hard and they play fast. Obviously with Coach Zimmer, not knowing him personally, but knowing his personality, those guys play the way he wants them to play."