AFC West

What happened to the Chiefs' fine passing defense? A motivated Derek Carr, that's what.

KANSAS CITY, Mo. — Before Sunday, the Chiefs hadn’t surrendered more than 20 points all season in a game or a pass play that covered more than 35 yards.Both of those standards had fallen by halftime.The Las Vegas Raiders were off and running behind quarterback Derek Carr and didn’t stop until they had pulled off a 40-32 upset of at Arrowhead Stadium.Carr did a Patrick Mahomes quick-strike impression, throwing three touchdown passes in the second quarter, with two covering 59 and 72 yards to Nelson Agholor and rookie Henry Ruggs III, respectively, over the top of the Chiefs’ defense.The long TD…