Be a jack-of-all-trades. In this new age of sports journalism, the more things you do well, the better off you will be. The people that can do multiple tasks well - sports writing, broadcast, photography, camera work, video editing, technical work (sound editing, CHYRON) - are going to get the jobs at websites, radio stations, TV stations, newspapers, etc.
In addition to broadcasting games, you should also consider doing sports packages similar to what you see during the sports report on the local news.
Get a camera with a tripod and go cover a game/practice. Film highlights of the game or practice. In addition, get interviews with the coach and the star players. Once you get your material, you edit the clips and turn it into a 1-2 minute package like you see on ESPN.
If you put together great stuff like that, you are going to be someone in high demand. And you might be making money sooner than you think in the business.