Ryan Succop kicked four field goals, Jackie Battle ran for a game-clinching score and the host Kansas City Chiefs ended the Green Bay Packers’ 19-game winning streak in Romeo Crennel’s first game as interim coach with a shocking 19-14 victory on Sunday.

In one of the most stunning upsets in recent memory, the Chiefs ended the second-longest winning streak in NFL history – as well as the Packers’ pursuit of an undefeated regular season. It was Green Bay’s first loss in nearly a year to the date.

The loss denied the Packers (13-1) a chance to clinch a first-round bye and home-field advantage throughout the playoffs. Green Bay can still clinch if San Francisco loses to Pittsburgh on Monday night.

The Packers last tasted defeat against the New England Patriots on Dec. 19, 2010, with Matt Flynn starting for a concussed Aaron Rodgers. They hadn’t even trailed in the fourth quarter this season.

But Rodgers, playing without star receiver Greg Jennings (sprained MCL), had by far his worst game of the season. He was 17 of 35 for 235 yards with just one touchdown and was sacked four times.

Rodgers had thrown at least two touchdown passes in an NFL-record 13 straight games.

Kansas City (5-8) failed to convert twice inside the Packers' 5-yard line early, but Battle's 1-yard plunge with 4:57 to play gave them a 19-7 lead.

Green Bay pulled within 19-14 with 2:12 to play on Rodgers’ 8-yard touchdown run. However, Kansas City recovered the onside kick and ran out the clock.

Crennel took over on an interim basis for Todd Haley, who was fired on Monday, and gave Kyle Orton his first start since Week 5 with Denver. Orton responded by outplaying Rodgers, passing for 299 yards.

More importantly, Crennel’s defense did a masterful job of keeping the highest-scoring offense in the league from getting in a rhythm. The Packers were shut out in the first half for the first time since a Week 17 win over Chicago last season.

Rodgers’ 2-yard touchdown pass to Donald Driver gave Green Bay a 7-6 lead with 8:08 left in the third, but Succop kicked a 46-yard field goal just under five minutes later.

It was the first time in seven games that the Chiefs scored more than 10 points.