NFL News: KC proposes new rule to expand restrictions on jersey numbers - Bolts From The Blue
The NFL Jersey Number Rule Explained - HowTheyPlay
Chiefs propose rule change allowing skill position players to wear single-digit numbers
Live Updates From the Chiefs vs. Eagles Face-Off in Super Bowl LVII - Bloomberg
NFL jersey number rule change could bring back some classic college football looks for Derrick Henry, Jalen Ramsey and others - ESPN
Eagles' proposal to allow players to wear No. 0 among nine rule-change submissions
NFL Football Operations on X: .@NFL owners approved a rule change proposed by the @Chiefs expanding jersey number options for certain positions. Check out the full list of 2021 rule changes
Niners Nation, a San Francisco 49ers community
NFL jersey number restrictions could change for running backs, receivers, tight ends, linebackers, defensive backs
More Numbers and Fewer Cut Dates: NFL Approves Rule Changes
There's some frustration;' coronavirus-free 49ers irked by NFL's re-instituted guidelines
Chiefs News: Now 34, Travis Kelce is 'even more on top of the world' - Arrowhead Pride
Chiefs limit Patrick Mahomes to first quarter of preseason opener - ESPN
The Chiefs proposed a new rule to reduce restrictions on jersey numbers - Niners Nation