Michigan Panthers part of rebooted USFL; they won't play here until 2023
Maulers' USFL reportedly in talks to merge with XFL
XFL, USFL should explore potential merger - Houston Business Journal
XFL, USFL announce merger plans
Could the XFL merge with the USFL after ending its partnership talks with the CFL?
XFL Archives - TV News Check
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XFL and USFL Announce Intent to Merge
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Details Emerging Regarding A Potential USFL-XFL Merger