11 things that have happened in the NFL since Aldon Smith last played

Aldon Smith is returning to the NFL as a Dallas Cowboy after being out of the league since 2015.

The PAT permanently changed

Kirby Lee-USA TODAY Sports

The league permanently move the line of scrimmage for extra-point kick attempts after touchdowns to the defensive team’s 15-yard line, and permanently allow the defense to return any missed attempt. The owners approved this rule change in 2015 as a one-year trial and voted this year to adopt it permanently.