If you've played fantasy football for any length of time, you know it's a game filled with acronyms. PPR, ADP, FAAB, IDP ... record scratch.

Wait, what?! You don't know IDP? Have a seat, my friend, we're about to do some learnin'.

Let's start with the basics. IDP stands for Individual Defensive Player. It's just what it sounds like. It's a fantasy league that usually dispenses of the D/ST (Defense/Special teams) spot in place of -- you guessed it -- individual defensive players.

Like all other fantasy formats, roster sizes and configurations can vary across leagues. Most beginner leagues include as few as three spots. More advanced leagues can add up to 11 IDP slots. The more defensive slots your league showcases, the higher the difficulty level. But it also opens a lot more strate

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