https://wccftech.com/marvels-avengers-day-one-update/

Developer Crystal Dynamics has detailed the Marvel’s Avengers Day-One update alongside current and future accessibility options that will be available in the game.

The highly-anticipated Avengers game is releasing next week on September 4, and those getting a physical copy of the title will be presented with a 18GB day-one patch. Digital buyers will be receiving this update through the game’s initial download.