You want to recreate the experience of covering a professional or D1 college game as much as possible?
Pick a bowl game that you have no rooting interest in. In the days leading up to the game, read every single article from the hometown papers of the schools. Learn as much about the teams as you possibly can. Think of possible storylines (Are both teams young and on the rise? Do the coaches have a history of coaching against the other? Are there 2010 Heisman hopefuls playing?).
Watch the game and take notes. You don't want your story to turn into play by play (...Notre Dame ran a fullback draw on the first play, but threw an incompletion on second down...), but be thinking of key plays. Was there a key penalty or breakdown defensively? You want to keep play by play, but not for stats. You'll get those off the team websites after the game. You want it so you have a quick reference on deadline and so you can add your own notes (pass inc, intended for 82. 82 slipped on wet grass -- 14 threw where 82 would have been). Don't cheat and use Tivo -- write stuff down as you see it. Be thinking about your possible storylines and winnowing them down. But be prepared to throw all of them out the window because the game might surprise you.
(To really get the full experience, you should probably be eating a half cooked hotdog, a bag of Lays chips and a Coke while you do this, just so you get used to writing while you have indigestion).
After taking your notes throughout the game, wait until any video/audio of the postgame press conference or interviews is posted online (the school sites are the best place to look. The bowl website may even have a transcript). Gather up as many quotes as possible. Then sit down and give yourself an hour to write a story. Use the quotes. Stay away from pure play by play. Think of a lead. Stop at 57 minutes to spell check and re-read. At one hour, email it to yourself in whatever state it is in. Then wait a day, open the email, re-read it and study it to see what you would change if you had the time. One of the most terrifying feelings as a writer is sitting in a press box and hitting send. You send it to the editor, knowing that if you had 10 more minutes, you could make the story 2x as good. And you send it, knowing that you have no control over what happens to it from now until it is in tomorrow's paper.
If you do all of this and love it, you might be cut out of this crazy business.