If you know a radio station that broadcasts the games and they stream* their broadcasts, you could try this link: Yourmuze.FM
It's easier if you create an account using a computer rather than your BB. If the radio station you want isn't in their database you can create one. It is fairly simple.
You can then access your list through the browser on your BB and listen to the game.
*Due to legal reasons, sometimes radio stations don't/can't stream sports games.