A little-noticed aspect of the NFL’s new extra point rule is that we could see, for the first time in league history, a one-point safety.
If the defense gets the ball in the field of play on a conversion attemp, and then a defensive player takes the ball into his own end zone and is tackled, the result will be a one-point safety: The offensive team will get one point. That has never happened before in NFL history.
It had never happened before because it was virtually impossible: In the past, any time the defense took possession of the ball on a point-after attempt (either a one-point kick or a two-point conversion), the play was blown dead. A one-point safety was theoretically possible before, but it would have happened only if the defensive team had illegally batted a fumbled ball in the end zone.
One-point safeties have happened in college football, most notably in the 2013 Fiesta Bowl, when Kansas State blocked an Oregon extra point and a Kansas State player picked up the ball and ran it into his own end zone. The college rule that gives the defense the opportunity to score two points by returning an interception, fumble or blocked kick to the opposite end zone means that defensive teams that take possession of the ball will try to run it back for a score, and sometimes those players end up getting tackled after backtracking into their own end zones.
With that rule now in place in the NFL, it will happen in the NFL eventually as well: Some defensive player is going to reverse field, get caught in his own end zone, and give up the first one-point safety in NFL history.