The file with the first three rounds is up now. It should work on any new live starts (though I have not actually tested it. Give it a half hour or so to populate in the CDN and then try. If it doesn't work then, let me know here).
Some players might not load correctly if they are missing their MLB id's in the current build. Any of these guys will be fixed next patch (or in the next public beta build).
I also attached a copy to this post in case anyone wants to apply it manually
