Need help ripping sprites from Virtua Tennis Challenge (mobile)

[GameBoy2936]

Hello. I've wanted to rip sprites from the mobile game Virtua Tennis Challenge (part of my favorite sport game series), so I can get all the court logos, player thumbnails, UI, etc. This is mainly to help out with my Virtua Tennis Wiki on Fandom. I've seen a lot of people on the Wiki search for things related to Virtua Tennis Challenge, which is available on the App Store, so I thought that I should focus on that game most on the Wiki. So the first step is to rip sprites from the game to add to the Wiki. I mean, it would take much more time to use Photoshop to remove the backgrounds of cropped images than ripping them from the game. Those rackets make it a lot harder to do so on the player thumbnails.

So I want to kindly ask, if any of you can share your ripping tips to make the mobile game ripping as easy as possible? Thank you very much.