I have just set up a mini league, for the "I Know the Score", which is a Premiership scores prediciton competition.
This, like the Fantasy Football, is also run on the official Premier League website!
If you have entered a team in "Fantasy Football" Competition, then you can use the same login details for this one which can be found through the link:
Football Prediction Game - I Know the Score - from the Premier League
I didn't mean to have my username as "Tricky11" but never mind!
To join the "TDP" mini league, then I think you just need to go on the "join private league option", and just type in the league code: tdp