Why the Chiefs’ defense is 2nd in the NFL after 19-8 victory over Broncos

Denver Broncos quarterback Russell Wilson (3) runs against Kansas City Chiefs' Justin Reid (20) during the first half of a game Thursday in Kansas City, Mo. (AP Photo/Ed Zurga)

KANSAS CITY, Mo. — Midway through the fourth quarter on Thursday night, the Chiefs’ defense had so thoroughly harassed and stifled Denver that it was time to look it up: The last time they’d shut out an opponent in a regular-season game was 2011, and the last and only time they’d shut out the Broncos was in 1970.