The 'Peanut Punch' is part of NFL's forced-fumble surge. What is it?

Forced fumbles in the NFL have increased by 32% after a down year, with the 'Peanut Punch' technique being cited as a key contributing factor. The 'Peanut Punch' is a specific ball-stripping maneuver used by defenders to dislodge the football from ball carriers. Yahoo Sports spoke with some of the NFL's best practitioners of the technique to explain how it works and why it has become more prevalent.