The Baltimore Ravens and Miami Heat are two of the most recent champions in the major professional sports leagues.
The Ravens, as you know, beat the San Francisco 49ers to win the Super Bowl, and the Heat just knocked off the San Antonio Spurs to claim the NBA title.
Each team celebrated with a parade through the city, but apparently the Heat's was a little lacking. At least, it appears that's how the Ravens feel.
Of course, it's been reported that the Heat's festival drew twice as many fans as the Ravens', so perhaps Baltimore should not have started this fight.