There are several links on the above page that go to a beta version of an interactive app called MLB FieldVision that shows skeletal data of players rendered on a baseball field. Here’s one example.
The app requires a free login to view, but there are also some tweets on the page with videos if you don’t want to create a login.
This thread helped us out in understanding why our ballpark models weren’t loading correctly: Textures in gLTF sometimes display black, but only on iOS