how do i unlock throwback jerseys?

[PadresFan08]

i can't figure out how to unlock throwback jerseys. i've did a search on google and is all i get is achivements. any help would be good. thanks.

[Cubfan]

You can get them through the card game, you have to unlock them by buying packs of cards in the game

[DARKSPACE]

i can't figure out how to unlock throwback jerseys. i've did a search on google and is all i get is achivements. any help would be good. thanks.
When you sign into your 2k8 VIP. head into your My Card Tab and highlight unlockables, Once done find and search for your selected jersey you are looking for, then press the R trigger to flip the card and read what is needed to receive that certain card.

Or you can always trade for jerseys using the trading card onine feature>

[b-Dub]

Also, while playing a game, you can pause it, then go to the My Card list (or something like that name), and it should list the throwback jerseys of the team you are using. It shows you how to unlock it there as well.