There are 18 players on the field for each team, with 22 all up (including the interchange bench).
Was is between these guys.
If so, then it's the Carlton Blues (the navy blue ones, and my team) and the Melbourne Demons.
There are 16 teams in the competition, with two more coming in over the next three years. They are:
The Western Bulldogs
The North Melbourne Kangaroos
Gold Coast (coming in 2011)
West Sydney (coming in 2012)
Thanks for your concern, but we didn't get it down here in Melbourne. They got it really bad in Sydney, and a bit later in Brisbane.
And AFL is great isn't it? It's way more active than NFL or Rugby. There are less stoppages so it allows the players to more easily string together handballs and/or kicks and gather more momentum. I love it. The Grand Final's on this Saturday, and it might be aired internationally, if you're interested. It's usually the best game of the year.