WATCH: Nick Sirianni making sure Shane Steichen knew he threw the challenge flag
383 Nfl Coach Challenge Flag Stock Photos, High-Res Pictures, and Images - Getty Images
Watch: Mike Vrabel angrily spiked challenge flag after terrible call
Is the best part of being an NFL head coach throwing the challenge flag?
Bye Week Narrative Check: Is Pete Carroll challenge flag challenged? - Field Gulls
How Do NFL Coaches Use Their Challenges?
383 Nfl Coach Challenge Flag Stock Photos, High-Res Pictures, and Images - Getty Images
No. 1 seed Chiefs spending playoff bye week getting healthy
Why throwing challenge flag is different in Super Bowl - Sports Illustrated
Debate continues over the controversial holding call in the Chiefs' win over the Jets – NewsNation
383 Nfl Coach Challenge Flag Stock Photos, High-Res Pictures, and Images - Getty Images
383 Nfl Coach Challenge Flag Stock Photos, High-Res Pictures, and Images - Getty Images
Washington Commanders @ Chicago Bears: Carson Wentz being made a 'scapegoat' after head coach Ron Rivera comments, NFL News
Bill Belichick Throws Challenge Flag Like A Petulant Child Toward Ref's Face