The Ravens have watched opposing defenses score four touchdowns off takeaways in their past four games. Baltimore now has the second-worst turnover differential in the NFL at minus-15, and Kansas City owns the second-best at plus-15.
Buck Allen's first-quarter fumble was returned 73 yards for a touchdown, and Jimmy Clausen's interception was brought back 90 yards for a score in the fourth quarter.
The season is beginning to unravel for Baltimore. The Ravens became the first team in NFL history to have their first 12 games decided by eight points or less (a total of 34 points). Baltimore's last two losses have been decided by 49 points.
What it means: The Ravens (4-10) lost their fifth home game in a season for the first time in the franchise's 20-year history. It's the fifth time that the Ravens have lost double-digit games in a season and the first since 2007. Baltimore remains one game back of the Tennessee Titans (3-11) and Cleveland Browns (3-11) for worst record in the NFL and the No. 1 overall pick.
What were they thinking? The Ravens knew they were the underdog, and it showed when they gambled with a fake punt in the first quarter. Trailing 14-7, punter Sam Koch ran up the middle on a fourth-and-9 at the Ravens' 17-yard line. Koch came up 2 yards short, and the Chiefs needed three plays to reach the end zone. Baltimore never got within seven points the rest of the game.
Hail Mary: The highlight of the game for the Ravens came on the final play of the first half, when Jimmy Clausen heaved up a 48-yard touchdown pass to Kamar Aiken. This was the third Hail Mary touchdown of the NFL season after having only three of them from 2012-14, according to ESPN Stats & Information. It was Clausen's longest pass completion since 2010, and it marked the second-longest touchdown pass of the season for Baltimore.
Fantasy watch: Allen was benched in the first quarter after his fumble was returned by Tyvon Branch 73 yards for a touchdown. It's the second straight week that Allen had fumbled. Terrance West got the bulk of the carries the rest of the game, finishing with 35 yards on seven carries.
What's next: The Ravens remain home to play their AFC North rival Pittsburgh Steelers. Baltimore has won three of the last four meetings.