NFL to consider radical replay question: Should coaches be allowed to challenge every single play?
NFL catch rule: Proposed changes could simplify process - Sports Illustrated
NFL likely to pass rule allowing more single-digit jersey numbers
NFL Could Be Easing Up On Jersey Number Restrictions, Would Be A Fine Move - Sports Illustrated Cleveland Browns News, Analysis and More
New Jersey Number Rule Expected from NFL - Sports Illustrated New Orleans Saints News, Analysis and More
NFL jersey numbers: Owners approve rule change for 2021 - Sports Illustrated
NFL approves rule change on jersey number, nixes overtime shifts
NFL passes jersey number expansion rule, meaning more single digits are coming - Acme Packing Company
What NFL Rule Changes Are Under Consideration at the 2023 NFL Owners Meetings?