There's a nice thing on Uefa's site which called "Uefa Champions League Fantasy Football".
You got 100 Points to buy 15 Players( 2 Goalkeepers , 5 Defenders , 5 Midfielders, 3 Attackers)
and you allowed to pick maximum 2 players from the same team.
This is the ranking system for the game:
After you created your team , Go in the Menu to "Leagues" , in this section you should have "Join Private League", Enter this number to it: 24588-5220
To register for the game:
TO sign in : http://en.uclfantasy.uefa.com/