NFL owners approve contingency plan to expand playoffs to 16 teams if COVID-19 causes cancellations
NFL playoff bracket, explained: How byes, seeding will work in expanded 2021 format
How Do the NFL Playoffs Work? Explaining Format, Byes, Home-Field Advantage
How does the NFL Playoff bracket work? Explaining byes, AFC-NFC seeding, and format for the 2022-23 postseason
College Football Playoff expansion: How a 12-team bracket would have looked for the 2021 postseason
How many teams will make NFL Playoffs? How many Wild Card teams will be in the 2022 playoffs - AS USA
NFL Playoff Bracket, Explained: How Byes, Seeding Will Work In Expanded 2021 Format 10/2023
OHSAA to expand football playoffs beginning in 2021
Couldn't find a visualization of the new postseason format anywhere so I made one : r/baseball