The NFL: The Complete History and Strategy
United States Football League (2022), American Football Wiki
Is USFL Enterprises Taking Over the XFL with a NSFL Rebrand?
Vikings-Bills: Justin Jefferson deserves MVP award consideration
New USFL reveals team names, cities, logos for 2022 season
Initial Thoughts On The 8 USFL Team Names/Markets For 2022
USFL Trademarks Spark Speculation on League Expansion and Team
Fox Sports' USFL Wins A Trademark Battle, But Loses Ground In The
More USFL Teams That Could Return Based on Registered Trademarks
All of the Team Logos for the USFL's Return in Spring 2022