Why the NFL's new pass interference rule is a win for everyone
NFL pass interference rule 2019: Explaining the new challenge, replay process for PI
49ers: Silly unwritten football rules the Niners, rest of NFL face
Future clouded for pass interference replay rule – Football Zebras
NFL replay rule change: Pass interference now can be reviewed
The NFL's pass interference challenge rule is looking worse every week
NFL instant replay: CFL review rules provide new model - Sports Illustrated
POLL: Do you approve of the NFL's decision to make pass interference reviewable? - Pride Of Detroit
Upon almost endless review, the NFL got it right with a late-developing plan to expand replay review
Cardinals 26-36 49ers (Nov 17, 2019) Game Recap - ESPN
Penalty (gridiron football) - Wikipedia
Saints-Rams missed call could open door for PI challenges