Video that went viral Monday appears to show Newton overhearing Broncos cornerback Chris Harris, talking to the media nearby, discussing Denver's plan to stop the Carolina quarterback.
"Load the box, force y'all to throw the ball. Can you throw the football? That was the game plan," Harris said.
It was at that point that Newton stood up and walked away.
But the league MVP wasn't exactly being a media darling up until that point. Wearing a hood over his head, Newton, who is known for his big grin, sulked while answering reporters' questions, mostly with one-word answers.
PHOTOS: Super Bowl 50
Newton was 18-of-41 for 265 yards with an interception and was sacked a Super Bowl-record seven times in the game.
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