A new NFL season is set to begin with last year's experiment on the new kickoff becoming permanent with a new tweak and several other changes in rules and officiating.

The league also will implement changes to the overtime rule for the regular season, expand replay assist, crack down on bad sportsmanship and use Hawk-Eye virtual measuring to replace the old-time chains to determine first downs.

The league experimented with the so-called dynamic kickoff in 2024 in hopes of more returns while also making the play safer. Owners voted in April to make the change permanent while moving touchbacks on kicks that reach the end zone on the fly from the 30 to the 35, which is expected to lead to more kicks in play and more returns.

There was no change in the tush push play that Philadelph

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