XFL rules, explained: The biggest differences vs. NFL, including overtime, 3-point PAT tries & double forward pass
XFL and USFL to merge, creating exciting new spring football league
XFL-USFL Merger Shakeup: Hub Cities, Broadcaster Changes, and NSFL Rebrand?!
Lachlan Murdoch says Fox plans to continue building USFL
XFL, USFL, or CFL? What's the Difference
How the USFL is Positioned to do What the Others Couldn't — Survive
United States Football League - Wikipedia
XFL vs USFL Which is Better, Who Survives? A surprisingly balanced analysis. : r/xfl
Once again, the XFL and USFL are back. And once again, we ask … why?
The Rock's XFL to Merge with USFL to Form New Spring Football League, Details TBD, News, Scores, Highlights, Stats, and Rumors