For the undercard of Pacquiao vs Horn, then the winner can face Pacquiao.....this would actually make the card barely worth while.
Because Amir Khan got at least $6m for fighting Alvarez, and Arum has a long-standing belief in not putting money into undercards.
Australia only has so much money to put up (and they're not going to put that money up for a 7am fight either)