NFL 17-game schedule approved: Five single-season records in danger of being broken with expansion

These five NFL records are in jeopardy of being broken with an extra game

The NFL hasn't seen the league schedule expand since the 16-game schedule was implemented in 1978, which is about to change 43 years later. Starting in 2021, the NFL will implement a 17-game schedule for the first time -- one that will change the game and the league's record books. Adding an extra game will put some hallowed NFL records in jeopardy, especially in a passing league where records are in danger of being surpassed every year. The league didn't experience record-breaking stats immediately when the schedule expanded from 14 games to 16 games, but some significant records were broken over the next decade that change the face of the NFL forever.  The 17-game schedule should have a similar impact, with several single-season records in danger as a result. Here are five significant NFL records in peril with the 17-game schedule in place: