Go to the Extras tab on the WWE 2K25 homepage. Click on the Arena you want to unlock and purchase it. Here’s a list of all the Arenas you can unlock using the in-game store.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and content measurement, audience insights and product development. List of Partners (vendors)

While most of the WWE 2K25 unlockables in MyRISE are obtained via specific choices throughout your save, there are several tied to Live Event matches. You can do as many Live Event matches as you want in any save, and what you unlock will be connected to how many stars each match gets.