You can rename it like png9999.iff put it inside the 2k9 folder, create a player name him rubio, save.
Open the roster file and find your created rubio, under the body tab, cvhange faceid to 9999, then tick the iff enabled box and magic! you have rubio with cf. but it wont have a portrait, only the generic blank portrait.
Yeah. Just to let you know, if you come across something like this, it doesn't mean you always have to replace something. Just create a player and edit it using Hades or whatever, and you should be good.