By KEELI GARZA Ahhhh, Super Bowl Sunday. Easily the most important day in American sports, you’re likely slated to watch the game whether you want to or not. Haven’t been keeping up with pro football? Not to worry. Whether you’re going to a party with friends or simply watching the game at home, Sports Gal is here with a handy primer on what you need to know about Super Bowl XLIII:The teamsThe Arizona Cardinals are the champions of the NFC.