XFL rules different than NFL
2023 XFL Regular Season: Football Season not Finish with SB
6 XFL features the NFL could adopt, ranked from most to least likely
XFL vs NFL: Rules, the game, and where it stays the same
NFL considers alternatives to the kickoff, including the XFL model - NBC Sports
Game-Changing XFL Kickoff Rules: A Break from NFL and College Norms
The NFL should buy the XFL and USFL to make them developmental leagues - Sports Illustrated
What Is the XFL 4th & 15 Onside Kick Rule?