GREEN BAY, WI -- Several Green Bay Packer players are fuming after multiple reports indicate that running back Ty Montgomery "threw a tantrum" on the sidelines during the game, and then fumbled the football away on the game's final kickoff - and Green Bay's chance to win against the Rams on Sunday.

With slightly more than two minutes left in the game, the Packers were down by two points and were set to get the ball back. The Rams had just scored on a Greg Zuerlein 34-yard field goal, giving them a tenuous 29-27 lead. Now they were kicking the ball back to the Packers. "It was scary," Rams quarterback Jared Goff said in an NFL report. "All our work on offense was done, and the ball was gonna be in his hands. I put on my hat and thought, It's his show now. It wasn't a very good feeling."

The Rams kicked the ball off, but instead of taking a knee in the end zone, kick returner Ty Montgomery took the ball out of the end zone on the kickoff and fumbled, sealing his team's fate. NFL.com reporter Mike Silver learned after the game that Green Bay coaches had instructed Montgomery to take a knee in the end zone, only to have Montgomery make his ill-advised foray down the field of his own volition. According to multiple reports, Montgomery's teammates were left fuming.

"The game was won," Davante Adams said in an ESPN report. "I already worked out in my head how everything was going to happen. All we needed was the ball. It's disappointing. Our defense played a great game against a tough offense, but at the same time we've got to finish."

Damn. pic.twitter.com/Hrq2N6pRB8

— Aaron Nagler (@AaronNagler) October 29, 2018 "They took him out (the previous drive) for a play and he slammed his helmet and threw a fit," one Packers player said in an NFL report. "Then (before the kickoff) they told him to take a knee, and he ran it out anyway. You know what that was? That was him saying, 'I'm gonna do me.' It's a f------ joke.

The loss gives Green Bay a 3-3-1 record and bereft of a signature win against the undefeated Rams.