If the in-game menu is in a language you cannot read, or if the option is missing, the game often defaults to your console or PC's system language.
: Note that physical discs are often region-locked to specific languages. If your disc was purchased in a specific region (e.g., Japan or Russia), it may not contain the files for other languages like English. In-Game Settings (If Available) how to change language in nba 2k11 link