The game contains a DLC code for The Fighting Chance Pack, as mentioned on the front cover. This edition was probably not available from the release date, as the game was first released without mentioning the DLC on the front.
It came with the DLC sheet, a manual, and an advertisement for the season pass.
4. Front of manual
Thanks to eBay members best4games (images 1, 3-4) and jokejack29 (image 2).