Free-kicks are rare in the NFL. How are they different from field goals? Check out the rules behind this unique play now.

A free kick is sort of like a field goal, but not really. Players line up a bit more like a kickoff, where everyone on offense must be behind the line of scrimmage when the ball is kicked. On defense, everyone must be ten yards back. Kickers can either elect to do a kick with a holder, or do a drop kick.

On Thursday, the Los Angeles Chargers pulled off a rare “free-kick field goal.” There are other oddball rules in the book if you dig deep enough.