United States Football League (2022) - Wikipedia
XFL and USFL to merge, creating exciting new spring football league
XFL vs. USFL: Comparing the differences in the spring football leagues
Lachlan Murdoch says Fox plans to continue building USFL
USFL rules, explained: The biggest differences vs. NFL and XFL, including kickoffs and incomplete clock rules
How Quarterback Luis Perez Became Pro Football's King of Spring - The Ringer
Why this time might be different for the XFL
Once again, the XFL and USFL are back. And once again, we ask … why?
The Curious Case of Alternative football league Quarterbacks
What is the top salary in USFL? Comparison of it with XFL and CFL