Updating typically doesn't delete your career progress because saves are stored in a separate system directory, not the game folder.
Searching for "Undisputed 4 torrent upd" typically yields results for two different media properties: the and the Boyka: Undisputed 4 movie0;5e; . 0;92;0;a3; 0;1b3;0;279; 1. Undisputed (Boxing Video Game) 0;bb7;0;931;
If you're excited about Undisputed 4, look into official purchase options or follow the game's social media and website for updates on availability, demos, or any special promotions that might make the game more accessible.