lamented his costly fumble in the New England Patriots' 24-21 loss to the Buffalo Bills.
"It's unacceptable," Newton told reporters after the game Sunday. "I've got to protect the ball."
The Patriots were in great position to at least get a game-tying field goal before Newton coughed it up inside the final minute.
This article will be updated to provide more information on this story as it becomes available.
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