NBA 2K11 does not have an in-game language selection menu. The language is determined by your console’s or PC’s system language . To change the game’s language, you must change your device’s system language.
Select → Console Settings → Language and Locale . How To Change Language In Nba 2k11
For console players, the process is different because you cannot edit game files directly. NBA 2K11 on consoles usually determines its language based on the console's system settings. NBA 2K11 does not have an in-game language selection menu
Change and optionally Locale to match your region. How To Change Language In Nba 2k11