Colts' young, fast, underrated defense to face ultimate test vs. Chiefs

INDIANAPOLIS -- It's the NFL's highest-scoring offense vs. the NFL's stingiest scoring defense from Week 7 onward.

Head coach and playcaller Andy Reid and his diverse offense vs. a defense that doesn't know anything but to have all 11 players pursue the football until the whistle is blown.

It's the NFL's No. 1-ranked offense (Kansas City) vs. one of the NFL's most underrated defenses (Indianapolis) in an AFC divisional playoff matchup on Saturday (4:35 p.m. ET, NBC).

"Kansas City, there's a reason why they're the No. 1 seed," Colts coach Frank Reich said. "Andy Reid is one of the best in the business. Have the most respect you can have for a guy. He's a great coach. They're very well-coached.…