Even if you bought FIFA 17 from a legitimate source, here are common scenarios where English is missing:
If your game immediately crashes to the desktop after applying the pack, the files may be corrupted or incompatible with your current game patch version. To fix this, remove the added .big and .bh files, verify the game integrity via the EA App, and search for a language pack that matches your specific game build version. Commentary is Silent
Frequently prioritize Brazilian Portuguese and Spanish.