A mismatch between the .big file size and the game's executable (especially cracked EXEs). Fix: Apply the Official FIFA 11 Patch 1.01 before installing the commentary. The patch updates the audio engine to handle the larger English file.

: On PC, if the game does not automatically recognize the new files, you may need to use the Registry Editor ) to change the "Locale" string to In-Game Selection

If your game is currently in another language (like Spanish or Russian) or has no commentary at all, follow these steps to install the English pack: