Packers-Eagles pass interference replay calls, reviews showcased NFL's mistake with new PI rules
League Meetings Bring 2019 Rule Changes
Use of the Helmet NFL Football Operations
NFL rules added to the controversial pass interference replay
Inside the Problematic New Pass Interference Replay Rule - The Ringer
New Replay Rule Proves Pivotal in Steelers Loss to Seahawks - Steelers Now
Inside the Problematic New Pass Interference Replay Rule - The Ringer
The NFL's pass interference challenge rule is looking worse every week : r/ nfl
Goodbye, pass interference replay review - Lessons learned from the NFL's failed officiating experiment - ESPN
How are Pete Carroll and the Seahawks going to handle the NFL's new PI challenge system? - Field Gulls
As Expected, The NFL's Pass Interference Replay Rule Has Been A Huge Mess
NFL: Pass interference rule change could flummox coaches this season