[From ESPN]

The NFL acted swiftly earlier this month when Jacksonville Jaguars quarterback Trevor Lawrence sustained a season-ending concussion at the end of a slide intended to protect him from violent contact.

We've put plays on the videos where if the defender is committed to making what otherwise would be a legal tackle, and he's committed to that, and at the last minute the quarterback decides to step out and he ends up getting contacted, and he's over the white [line], but has not yet stepped out of bounds, that's a legal hit by the defender."

Detroit Lions linebacker Jack Campbell hit Chicago Bears quarterback Caleb Williams in a similar situation during Week 13, after Lions coach Dan Campbell reminded his defenders that Williams had previously tried to continue upfield after getting near the sideline.

Read more of ESPN's story HERE