The NFL's 'all-star' officiating crews are ruining the playoffs - The Boston Globe
Without Updated Tools, NFL Is Still Finding Concussions Too Late - The New York Times
French referees told not to pause matches during Ramadan
Ime Udoka: Houston Rockets reach agreement with former Boston Celtics head coach, per reports
Who is Land Clark and what is going on with his officiating crew in Bills-Jaguars?
False claims of NFL referee investigation started as satire
Patriots-Packers preseason game suspended after rookie Isaiah Bolden suffers head injury - The Boston Globe
Column: NFL officials make far too many mistakes, and it's worse in the playoffs - The San Diego Union-Tribune
Thomas Tuchel: Chelsea boss says referee Anthony Taylor should not officiate his side again after Spurs draw, Football News
NFL Health and Safety Fact Sheet
Iowa Football: Everything Kirk Ferentz said after loss at Ohio State
Debate continues over the controversial holding call in the Chiefs' win over the Jets – NewsNation
Football hooliganism - Wikipedia
Breaking down 4 of Dan Campbell's risky moves during Chiefs game -- did he make right calls?
Chiefs fans are already upset about the Super Bowl ref Carl Cheffers