Thursday's Hall of Fame Game between the Baltimore Ravens and Chicago Bears marked the first NFL game since the league implemented a new helmet rule.
Baltimore safety Bennett Jackson walked away from the matchup believing the league is going to use the preseason to set an example, per ESPN's Jamison Hensley:
"I feel like they're trying to harp on it a lot more in preseason, so they're going to throw flags even on times when it's not necessarily head-to-head, just to make people aware of it.