Fantasy football season is officially heating up, and it’s time to dive into the only cheat sheet you’ll need—Fantasy on SI’s Top 300 Rankings for PPR, Half-PPR, and Standard formats. Whether you're a seasoned drafter or playing for the first time,

While these rankings are obviously adaptable, they are for a 1 QB league with full PPR scoring. And as we get closer to fantasy draft season, these rankings will expand again to a Top 200.

With the Seahawks celebrating their 50th season, fantasy insider Scott Engel looks at the 12 greatest fantasy performers in team history.