(Cross-posted in LoL, but figured this would be relevant to SE's interests)
I've come across a fairly interesting football simulation. It's a mmo where you basically create your own football player, pick a position and progress him in a world where even Oceania and Eastern Europe have pro- and minor-leagues. It's pretty much sated my football fix in the last couple days.
Interestingly, there are standard CPU-controlled teams you can receive offers from, but players can also pay to take over ownership of teams using flex points, which is the currency of the game.
Much like any other RPG you control your player's fate by training and getting equipment in various stats and skills. It's the regular season right now and there are games played every other day. The games are just complex simulations based on your statistics and level, but the cool thing is every play of every game is animated.
Apparently the game opened to the public about a week or so ago, so you won't be far behind the curve if that's a concern.
It's a browser-based game which you can get to here:
http://goallineblitz.com/game/signup.pl
If you'd like to get me some free flex points, use this referral link:
http://goallineblitz.com/game/signup.pl?ref=527170