NFL icon JJ Watt in tears after Arizona Cardinals make touching gesture upon retirement - Mirror Online
NFL kicks off its first regular season without a rule change* since 1968. *There are changes you should know about. – Football Zebras
NFL approves 2 rule changes; postseason OT altered
NFL approves 2 rule changes; postseason OT altered
The new rugby structure in Wales as major changes announced and how it will work - Wales Online
Major NFL rule changes could be coming: 12 things to know about the league's latest proposals
NCAA transfer rule change is here, and it's game-changing - Sports Illustrated
United States Football League (2022) - Wikipedia
New NFL rules for 2023: league adopts changes to replay, fourth-downs
NFL rule tweaks and trends you should know as the 2022 season begins - ESPN